TW202330593A - 抗gprc5d單株抗體及其用途 - Google Patents
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Abstract
本發明提供對人類GPRC5D蛋白具有結合特異性之抗體或其片段。該等抗體或其片段能夠靶向表現GPRC5D之癌細胞,因此可以用於治療癌症,特別是血液癌症。
Description
G蛋白偶聯受體C家族5組成員D (GPRC5D)係G蛋白偶聯受體家族之成員。GPRC5D係一種跨膜蛋白。在多發性骨髓瘤患者中觀察到GPRC5D之過表現。詳言之,其高表現與疾病及治療之不良結果具有顯著相關性。
鑒於其在惡性細胞上之特異性高表現,已提出對GPRC5D特異性之抗體可以用於治療惡性腫瘤,例如經由雙特異性T細胞重定向抗體或經由抗體依賴性細胞毒性(ADCC)。
在本文中發現了對人類GPRC5D蛋白具有高親和力之抗GPRC5D抗體,包括其人源化衍生物。該等抗體或其片段能夠靶向表現GPRC5D之癌細胞,因此可以用於治療癌症,特別是血液癌症。
本揭示之一個實施例提供了一種對人類G蛋白偶聯受體C家族5組成員D (GPRC5D)蛋白具有結合特異性之抗體或其抗原結合片段,其中該抗體或其片段包含重鏈可變區(VH)及輕鏈可變區(VL),該重鏈可變區(VH)包含重鏈互補決定區CDRH1、CDRH2及CDRH3,該輕鏈可變區(VL)包含互補決定區CDRL1、CDRL2及CDRL3。在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含:(a) SEQ ID NO:29-34之胺基酸序列;(b) SEQ ID NO:42-47之胺基酸序列;(c) SEQ ID NO:54-59之胺基酸序列;或(d) SEQ ID NO:68-73之胺基酸序列。
在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:29-34之胺基酸序列。在一些實施例中,VH包含選自由SEQ ID NO:7及35-37組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:8及38-41組成之群的胺基酸序列。在一些實施例中,VH包含SEQ ID NO:35之胺基酸序列,且VL包含SEQ ID NO:38之胺基酸序列。
在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:42-47之胺基酸序列。在一些實施例中,VH包含選自由SEQ ID NO:9及48-50組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:10及51-53組成之群的胺基酸序列。在一些實施例中,VH包含SEQ ID NO:48之胺基酸序列,且VL包含SEQ ID NO:51之胺基酸序列。
在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:54-59之胺基酸序列。在一些實施例中,VH包含選自由SEQ ID NO:61-64組成之群的胺基酸序列,VL包含選自由SEQ ID NO:16及65-67組成之群的胺基酸序列。在一些實施例中,VH包含SEQ ID NO:61之胺基酸序列,且VL包含SEQ ID NO:65之胺基酸序列。在一些實施例中,VH包含SEQ ID NO:63之胺基酸序列,且VL包含SEQ ID NO:65之胺基酸序列。
在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:68-73之胺基酸序列。在一些實施例中,VH包含選自由SEQ ID NO:1及74-79組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:2及80-86組成之群的胺基酸序列。在一些實施例中,VH包含SEQ ID NO:76之胺基酸序列,且VL包含SEQ ID NO:82之胺基酸序列。在一些實施例中,VH包含SEQ ID NO:77之胺基酸序列,且VL包含SEQ ID NO:82之胺基酸序列。
在一些實施例中,該抗體或其片段係人源化的。在一些實施例中,該抗體或其片段具有ADCC能力。
在一些實施例中,亦提供了一種抗體或其片段,該抗體或其片段進一步包含與該抗體或其片段結合之細胞毒性藥物。
亦提供了一種雙特異性抗體,其包含本揭示之抗原結合片段,及對第二目標蛋白具有特異性之第二抗原結合片段。在一些實施例中,第二目標蛋白選自由CD3、CD16、CD19、CD28、CD64及4-1BB組成之群。在一些實施例中,第二目標蛋白係CD3。在一些實施例中,第二目標蛋白係4-1BB。
亦提供了一種治療有需要患者之癌症的方法,其包含向該患者投與本揭示之抗體或其片段。亦提供了一種治療有需要患者之癌症的方法,其包含(a)用本揭示之抗體或其片段在活體外處理T細胞、自然殺手(NK)細胞或巨噬細胞,(b)將經處理之細胞投與至患者。
在一些實施例中,該癌症係血液癌症,諸如表現GPRC5D之B細胞癌(例如,多發性骨髓瘤)。
定義
應當注意,術語「一(a/an)」實體係指該實體之一個或多個(一種或多種);例如,「一種抗體」應理解為表示一種或多種抗體。因此,術語「一」、「一個(種)或多個(種)」及「至少一個(種)」在本文中可以互換使用。
如本文所用,術語「多肽」旨在涵蓋單數「多肽」及複數「多肽」,並且係指由藉由醯胺鍵(亦稱為肽鍵)線性連接之單體(胺基酸)構成之分子。術語「多肽」係指兩個或多個胺基酸之任何一條或多條鏈,並不指特定長度之產物。因此,「多肽」之定義中包括肽、二肽、三肽、寡肽、「蛋白質」、「胺基酸鏈」或用於指代兩個或更多個胺基酸之一條或多條鏈之任何其他術語,並且術語「多肽」可以代替此等術語中之任何術語使用,或與此等術語中之任何術語互換使用。術語「多肽」亦旨在指多肽之表現後修飾之產物,包括但不限於糖基化、乙醯化、磷酸化、醯胺化、藉由已知之保護/封閉基團衍生化、蛋白水解切割或藉由非天然存在之胺基酸進行之修飾。多肽可以源自天然生物來源或藉由重組技術產生,但不一定自指定之核酸序列轉譯而來。其可以任何方式產生,包括藉由化學合成產生。
「同源性(homology)」或「同一性(identity)」或「相似性(similarity)」係指兩條肽之間或兩個核酸分子之間的序列相似性。同源性可以藉由比較每個序列中之位置來確定,序列可以出於比較之目的而被比對。當比較序列中之一個位置被相同之鹼基或胺基酸佔據時,則分子在該位置係同源的。序列之間的同源性程度係序列共用之匹配位置或同源位置之數目之函數。「不相關的」或「非同源的」序列與本揭示之序列之一共用小於40%之同一性,但較佳小於25%之同一性。
多核苷酸或多核苷酸區(或多肽或多肽區)與另一條序列具有一定百分比(例如60%、65%、70%、75%、80%、85%、90%、95%、98%或99%)之「序列同一性」係指,當比對時,在比較兩個序列時鹼基(或胺基酸)相同之百分比。
術語「等效核酸或等效多核苷酸」係指具有與核酸或其互補物之核苷酸序列具有一定程度之同源性或序列同一性之核苷酸序列之核酸。雙鏈核酸之同源物旨在包括具有與其或其互補物具有一定程度同源性之核苷酸序列之核酸。在一個態樣中,核酸之同源物能夠與核酸或其互補物雜交。同樣地,「等效多肽」係指與參考多肽之胺基酸序列具有一定程度之同源性或序列同一性之多肽。在一些態樣中,序列同一性為至少約70%、75%、80%、85%、90%、95%、98%或99%。在一些態樣中,與參考多肽或多核苷酸相比,等效多肽或多核苷酸具有1、2、3、4或5個添加、缺失、取代及其組合。在一些態樣中,等效序列保留參考序列之活性(例如,抗原決定基結合)或結構(例如,鹽橋)。
如本文所用,「抗體」或「抗原結合多肽」係指特異性識別並結合抗原之多肽或多肽複合物。抗體可以係完整抗體及其任何抗原結合片段或單鏈。因此,術語「抗體」包括任何蛋白質或肽,其含有包括至少免疫球蛋白分子中具有與抗原結合之生物學活性之部分之分子。其實例包括但不限於重鏈或輕鏈之互補決定區(CDR)或其配體結合部分、重鏈或輕鏈可變區、重鏈或輕鏈恆定區、構架(FR)區或其任何部分,或結合蛋白之至少一個部分。
如本文所用,術語「抗體片段」或「抗原結合片段」係諸如F(ab')
2、F(ab)
2、Fab'、Fab、Fv、scFv等抗體之一部分。無論結構如何,抗體片段均與被完整抗體識別之同一抗原結合。術語「抗體片段」包括適配體(aptamer)、鏡像異構體(spiegelmer)及雙功能抗體(diabody)。術語「抗體片段」亦包括像抗體一樣藉由與特定抗原結合形成複合物而起作用之任何合成之或基因工程之蛋白。
「單鏈可變片段」或「scFv」係指免疫球蛋白之重鏈之可變區(V
H)及輕鏈之可變區(V
L)之融合蛋白。在一些態樣中,該區與10至約25個胺基酸之短接頭肽連接。該接頭可以富含甘胺酸以提高柔性,並且富含絲胺酸或蘇胺酸以提高溶解度,並且可以將V
H之N-末端與V
L之C-末端相連,反之亦然。儘管去除了恆定區並引入了接頭,但該蛋白仍保留了原始免疫球蛋白之特異性。ScFv分子係此項技術中已知的,並且例如在美國專利5,892,019中被描述。
術語抗體涵蓋了各種廣泛類別之多肽,其可以自生物化學上被區分。熟習此項技術者將理解,重鏈被分類為gamma、mu、alpha、delta或epsilon (γ、μ、α、δ、ε),其中有一些子類(例如γl-γ4)。該鏈之性質決定了抗體之「類別」分別為IgG、IgM、IgA、IgG或IgE。免疫球蛋白亞類(同型),例如IgG
1、IgG
2、IgG
3、IgG
4、IgG
5等,已被很好地表徵,並且已知賦予功能特異性。鑒於本揭示,此等類別及同型之每一個之修飾版本對於熟習此項技術者而言係容易辨別的,並且因此在本揭示之範疇內。所有之免疫球蛋白類別顯然均在本揭示之範疇內,下面之討論一般將針對免疫球蛋白分子之IgG類別。關於IgG,標準免疫球蛋白分子包含兩條相同之分子量約為23,000道爾頓之輕鏈多肽及兩條相同之分子量為53,000-70,000之重鏈多肽。四條鏈通常藉由二硫鍵以「Y」構型連接,其中輕鏈將重鏈括起來,自「Y」之口開始,一直延伸過可變區。
本揭示之抗體、其抗原結合多肽、變體或衍生物包括但不限於多株、單株、多特異性、人類、人源化、靈長類化或嵌合之抗體,單鏈抗體,抗原決定基結合片段,例如Fab、Fab'及F(ab')
2、Fd、Fv、單鏈Fv(scFv)、單鏈抗體、二硫鍵連接之Fv(sdFv)、包含VK或VH域之片段、由Fab表現文庫產生之片段及抗獨特型(anti-idiotypic) (抗Id)抗體(包括例如本文揭示之針對LIGHT抗體之抗Id抗體)。本揭示之免疫球蛋白或抗體分子可為任何類型(例如,IgG、IgE、IgM、IgD、IgA及IgY)、類別(例如,IgG1、IgG2、IgG3、IgG4、IgA1及IgA2)或亞類之免疫球蛋白分子。
輕鏈分為kappa或lambda (κ、λ)。每種重鏈類別均可以與κ或λ輕鏈結合。通常,當免疫球蛋白由雜交瘤、B細胞或基因工程宿主細胞產生時,輕鏈及重鏈彼此共價鍵合,兩條重鏈之「尾」部藉由共價二硫鍵或非共價鍵彼此鍵合。在重鏈中,胺基酸序列自Y構型之分叉末端之N-末端延伸到每條鏈底部之C-末端。
輕鏈及重鏈均分為結構同源區及功能同源區。術語「恆定」及「可變」在功能上使用。就此而言,應當理解,輕鏈部分之可變域(VK)及重鏈部分之可變域(VH)決定了抗原識別及特異性。相反地,輕鏈之恆定域(CK)及重鏈之恆定域(CH1、CH2或CH3)賦予重要之生物學特性,諸如分泌、跨胎盤遷移、Fc受體結合、互補物結合等。按照慣例,恆定區域之編號隨著其變得更遠離抗體之抗原結合位點或胺基末端而增加。N-端部分係可變區,C-端部分係恆定區;CH3及CK域實際上分別包含重鏈及輕鏈之羧基端。
如上所述,可變區允許抗體選擇性識別並特異性結合抗原上之抗原決定基。亦即,抗體之VK域及VH域或互補決定區(CDR)之子集組合形成定義三維抗原結合位點之可變區。此四級抗體結構形成了存在於Y之各臂終端之抗原結合位點。更具體而言,抗原結合位點由VH及VK鏈各自上之三個CDR(亦即CDR-H1、CDR-H2、CDR-H3、CDR-L1、CDR-L2及CDR-L3)定義。在某些情況下,例如某些源自駱駝科物種或基於駱駝科免疫球蛋白工程改造之免疫球蛋白分子,完整之免疫球蛋白分子可以僅由重鏈組成,而沒有輕鏈。參見,例如,Hamers-Casterman等,
Nature363:446-448(1993)。
在天然存在之抗體中,在每個抗原結合域中存在之六個「互補決定區」或「CDR」係短的、非連續的胺基酸序列,該胺基酸序列經特異性定位為當在水性環境中該抗體呈現出其三維構型時形成抗原結合域。抗原結合域中之其餘胺基酸(稱為「構架」區)顯示出較小之分子間可變性。構架區主要採用β-摺疊結構,並且CDR形成環,該環連接β-摺疊結構,並在某些情況下形成β-摺疊結構之一部分。因此,構架區起形成支架之作用,該支架藉由鏈間非共價相互作用將CDR定位在正確之方向上。由定位之CDR形成之抗原結合域限定了與免疫反應性抗原上之抗原決定基互補之表面。此互補表面促進抗體與其同源抗原決定基之非共價結合。一般熟習此項技術者可以容易地針對任何給定之重鏈或輕鏈可變區鑑定分別包含CDR及構架區之胺基酸,因為其已經被精確地定義(參見「Sequences of Proteins of Immunological Interest」,Kabat, E.等,美國衛生與公共服務部(U.S. Department of Health and Human Services),(1983);及Chothia及Lesk,
J. MoI. Biol.,196:901-917(1987))。
在此項技術中使用及/或接受之術語有兩個或更多個定義之情況下,除非有明確之相反說明,否則如本文所用術語之定義旨在包括所有此等含義。一個具體實例係使用術語「互補決定區」(「CDR」)來描述在重鏈及輕鏈多肽之可變區內均發現之非連續抗原結合位點。此特定區已經由Kabat等,美國衛生與公共服務部(U.S. Dept. of Health and Human Services),「Sequences of Proteins of Immunological Interest」(1983)及Chothia等,
J. MoI. Biol.196:901-917 (1987)描述,其以全文引用之方式併入本文中。當彼此比較時,根據Kabat及Chothia之CDR定義包括胺基酸殘基之重疊或子集。然而,任何一種用於指代抗體或其變體之CDR之定義之應用均旨在處於本文所定義及使用之術語之範疇內。作為比較,下表中列出了涵蓋如上述引用之各參考文獻所定義之CDR之合適胺基酸殘基。涵蓋特定CDR之確切殘基編號將根據CDR之序列及大小而變化。給定了抗體之可變區胺基酸序列,熟習此項技術者可以常規地確定哪些殘基包含特定CDR。
Kabat | Chothia | |
CDR-H1 | 31-35 | 26-32 |
CDR-H2 | 50-65 | 52-58 |
CDR-H3 | 95-102 | 95-102 |
CDR-L1 | 24-34 | 26-32 |
CDR-L2 | 50-56 | 50-52 |
CDR-L3 | 89-97 | 91-96 |
Kabat等亦定義了適用於任何抗體之可變域序列之編號系統。一般熟習此項技術者可以明確地將此「Kabat編號」系統分配給任何可變域序列,而不依賴序列本身以外之任何實驗數據。如本文所用,「Kabat編號」係指由Kabat等,美國衛生及公共服務部(U.S. Dept. of Health and Human Services),「Sequence of Proteins of Immunological Interest」(1983)中所示之編號系統。
除上表外,Kabat編號系統亦如下描述了CDR區:CDR-H1在大約第31位胺基酸處開始(亦即在第一個半胱胺酸殘基之後大約9個殘基),包括大約5-7個胺基酸,並在下一個色胺酸殘基處終止。CDR-H2在CDR-H1末端之後的第15個殘基處開始,包含約16-19個胺基酸,並在下一個精胺酸或離胺酸殘基處終止。CDR-H3在CDR-H2末端後大約第33個胺基酸殘基處開始;包含3-25個胺基酸;並在序列W-G-X-G處終止,其中X係任意胺基酸。CDR-L1在大約第24位殘基處開始(亦即在半胱胺酸殘基之後);包含大約10-17個殘基;並在下一個色胺酸殘基處終止。CDR-L2在CDR-L1末端之後大約第16個殘基處開始,包含大約7個殘基。CDR-L3在CDR-L2末端之後大約第33個殘基處(亦即在半胱胺酸殘基之後)開始;包含大約7-11個殘基,並在序列F或W-G-X-G處終止,其中X係任意胺基酸。
本文所揭示之抗體可以來自任何動物來源,包括鳥類及哺乳動物。較佳地,抗體係人類、鼠類、驢、兔、山羊、豚鼠、駱駝、美洲駝、馬或雞之抗體。在另一個實施例中,可變區可以係condricthoid來源(例如來自鯊魚)。
如本文所用,術語「重鏈恆定區」包含衍生自免疫球蛋白重鏈之胺基酸序列。包含重鏈恆定區之多肽包含以下至少一種:CH1域、鉸鏈(例如,上、中及/或下鉸鏈區)域、CH2域、CH3域,或其變體或片段。例如,用於本揭示之抗原結合多肽可以包含含CH1域之多肽鏈;含CH1域、鉸鏈域之至少一部分及CH2域之多肽鏈;含CH1域及CH3域之多肽鏈;含CH1域、鉸鏈域之至少一部分及CH3域之多肽鏈,或含CH1域、鉸鏈域之至少一部分、CH2域及CH3域之多肽鏈。在另一個實施例中,本揭示之多肽包含含CH3域之多肽鏈。進一步地,用於本揭示之抗體可以缺少CH2域之至少一部分(例如,CH2域之全部或部分)。如上所述,一般熟習此項技術者將理解,重鏈恆定區可經修飾,使得其在胺基酸序列上與天然存在之免疫球蛋白分子不同。
本文揭示之抗體之重鏈恆定區可以源自不同之免疫球蛋白分子。例如,多肽之重鏈恆定區可以包含源自IgG
1分子之CH1域及源自IgG
3分子之鉸鏈區。在另一個實例中,重鏈恆定區可以包含部分源自IgG
1分子且部分源自IgG
3分子之鉸鏈區。在另一個實例中,重鏈部分可以包含部分源自IgG
1分子且部分源自IgG
4分子之嵌合鉸鏈。
如本文所用,術語「輕鏈恆定區」包括源自抗體輕鏈之胺基酸序列。較佳地,輕鏈恆定區包含恆定κ域或恆定λ域中之至少一種。
「輕鏈-重鏈對」係指輕鏈及重鏈之集合,其可以藉由輕鏈之CL域及重鏈之CH1域之間的二硫鍵形成二聚體。
如前所述,各種免疫球蛋白類別之恆定區之亞基結構及三維構型係眾所周知的。如本文所用,術語「VH域」包括免疫球蛋白重鏈之胺基末端可變域,術語「CH1域」包括免疫球蛋白重鏈之第一(最胺基末端)恆定區域。CH1域與VH域相鄰,並且在免疫球蛋白重鏈分子之鉸鏈區之胺基末端。
如本文所用,術語「CH2域」包括重鏈分子的例如自抗體之約第244位殘基延伸至第360位殘基(使用習知編號方案) (第244至360位殘基,Kabat編號系統;及第231-340位殘基,EU編號系統;參見Kabat等,美國衛生與公共服務部,「Sequences of Proteins of Immunological Interest」(1983))之部分。CH2域之獨特之處在於其不與另一個域緊密配對。而是,兩個N-連接之分枝碳水化合物鏈插入完整之天然IgG分子之兩個CH2域之間。亦充分證明,CH3域自CH2域延伸至IgG分子之C-末端,並包含約108個殘基。
如本文所用,術語「鉸鏈區」包括重鏈分子之連接CH1域及CH2域之部分。該鉸鏈區包含約25個殘基並且係柔性的,因此允許兩個N-末端抗原結合區獨立移動。鉸鏈區可細分為三個不同之域:上、中、下鉸鏈域(Roux等,
J. Immunol161:4083(1998))。
如本文所用,術語「二硫鍵」包括在兩個硫原子之間形成之共價鍵。胺基酸半胱胺酸包含硫醇基,其可以與第二個硫醇基形成二硫鍵或橋連。在大多數天然存在之IgG分子中,CH1及CK區藉由二硫鍵連接,並且兩條重鏈藉由兩個在對應於第239位及第242位(使用Kabat編號系統) (第226位或第229位,EU編號系統)之二硫鍵連接。
如本文所用,術語「嵌合抗體」將被認為係意指其中免疫反應性區或免疫反應性位點獲自或源自第一物種並且恆定區(根據本揭示,其可以係完整的、部分的或修飾的)獲自第二物種之任何抗體。在某些實施例中,目標結合區或目標結合位點將來自非人類來源(例如小鼠或靈長類),而恆定區係人類的。
如本文所用,藉由確定人源化域及種系域之間的構架胺基酸差異(亦即非CDR差異)之數目,自胺基酸總數中減去該數目,然後除以胺基酸總數並乘以100來計算「人源化百分比」。
「特異性結合」或「對……具有特異性」通常係指抗體經由其抗原結合域與抗原決定基結合,並且該結合需要在抗原結合域及抗原決定基之間具有一定互補性。根據該定義,當抗體經由其抗原結合域與抗原決定基結合比抗體與隨機的、不相關的抗原決定基結合更容易時,抗體被稱為與該抗原決定基「特異性結合」。術語「特異性」在本文中用於限定某種抗體與某種抗原決定基結合之相對親和力。例如,可以認為抗體「A」對給定之抗原決定基具有比抗體「B」更高之特異性,或者可以說抗體「A」以比對相關抗原決定基「D」更高之特異性結合抗原決定基「C」。
如本文所用,術語「治療(treat/treatment)」係指治療性治療及預防性(prophylactic或preventative)措施,其中目的係預防或減緩(減輕)不期望之生理變化或紊亂,諸如癌症之進展。有益之或期望之臨床結果包括但不限於無論係可偵測的抑或不可偵測的症狀緩解、疾病程度減輕、疾病狀態穩定(亦即不惡化)、疾病進展延遲或減慢、疾病狀態改善或減輕,及緩解(無論係部分抑或全部)。「治療」亦可以意謂與若未接受治療時所預期之生存期相比,生存期延長。需要治療之彼等個體包括已經患有病狀或病症之彼等個體,及易患病狀或病症之彼等個體,或要預防病狀或病症之彼等個體。
「個體(subject/individual)」或「動物(animal)」或「患者(patient)」或「哺乳動物(mammal)」係指需要診斷、預後或治療之任何個體,特別是哺乳動物個體。哺乳動物個體包括人類、家畜、農場動物及動物園動物、運動動物或寵物,諸如狗、貓、豚鼠、兔子、大鼠、小鼠、馬、家牛、奶牛等。
如本文所用,短語諸如「需要治療之患者」或「需要治療之個體」包括將自投與本揭示所使用的例如用於偵測、用於診斷程序及/或用於治療之抗體或組合物而受益之個體,諸如哺乳動物個體。
抗 GPRC5D 抗體
使用雜交瘤技術,所附之實驗例表明獲得了多種鼠類抗體。對十四種鼠類抗體進行了定序,並製備了人源化抗體。此等人源化抗體表現出強大的GPRC5D結合活性,並且能夠誘導受體介導之內吞作用。活體內試驗表明,此等抗體具有誘導ADCC及抑制腫瘤發展之活性。
四種鼠類抗體,34D3H1、37B9C4、58F9G10及6G10D9,經歷了人源化過程。一些人源化抗體,包括6-H3L3、6-H4L3(均源自6G10D9)、58-H1L1、58-H3L1 (均源自58F9G10)、34-H1L1 (源自34D3H1)及37-H1L1 (均源自37B9C4),進一步顯示出繼續臨床開發之希望。
因此,根據本揭示之一個實施例,提供了一種抗體或其抗原結合片段,該抗體或其抗原結合片段對人類G蛋白偶聯受體C家族5組成員D (GPRC5D)蛋白具有結合特異性。該抗體或其片段包括重鏈可變區(VH)及輕鏈可變區(VL),該重鏈可變區包含重鏈互補決定區CDRH1、CDRH2及CDRH3,該輕鏈可變區包含互補決定區CDRL1、CDRL2及CDRL3。
在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括(a) SEQ ID NO:29-34之胺基酸序列;(b) SEQ ID NO:42-47之胺基酸序列;(c) SEQ ID NO:54-59或SEQ ID NO:54、60及56-59之胺基酸序列;或(d) SEQ ID NO:68-73之胺基酸序列。
在一個實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括SEQ ID NO:29-34之胺基酸序列。VH之實例序列包括SEQ ID NO:7及35-37或與SEQ ID NO:7及35-37中之任一者具有至少85%、90%或95%序列同一性之序列。VL之實例序列包括SEQ ID NO:8及38-41或與SEQ ID NO:8及38-41中之任一者具有至少85%、90%或95%序列同一性之序列。
在一個實施例中,VH包括SEQ ID NO:35之胺基酸序列或與SEQ ID NO:35具有至少85%、90%或95%序列同一性之序列。在一個實施例中,VL包括SEQ ID NO:38之胺基酸序列或與SEQ ID NO:38具有至少85%、90%或95%序列同一性之序列。
在一些實施例中,亦提供了與此等抗體中之任一者結合FAPα上相同抗原決定基之抗體及其抗原結合片段。在一些實施例中,亦提供了與此等抗體中之任一者競爭結合FAPα之抗體及其抗原結合片段,諸如一種抗體及其抗原結合片段,其具有包括SEQ ID NO:35之胺基酸序列之VH及包括SEQ ID NO:38之胺基酸序列之VL。
在一個實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括SEQ ID NO:42-47之胺基酸序列。VH之實例序列包括SEQ ID NO:9及48-50或與SEQ ID NO:9及48-50中之任一者具有至少85%、90%或95%序列同一性之序列。VL之實例序列包括SEQ ID NO:10及51-53或與SEQ ID NO:10及51-53中之任一者具有至少85%、90%或95%序列同一性之序列。
在一個實施例中,VH包括SEQ ID NO:48之胺基酸序列或與SEQ ID NO:48具有至少85%、90%或95%序列同一性之序列。在一個實施例中,VL包括SEQ ID NO:51之胺基酸序列或與SEQ ID NO:51具有至少85%、90%或95%序列同一性之序列。
在一些實施例中,亦提供了與此等抗體中之任一者結合FAPα上相同抗原決定基之抗體及其抗原結合片段。在一些實施例中,亦提供了與此等抗體中之任一者競爭結合FAPα之抗體及其抗原結合片段,諸如一種抗體及其抗原結合片段,其具有包括SEQ ID NO:48之胺基酸序列之VH及包括SEQ ID NO:51之胺基酸序列之VL。
在一個實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括SEQ ID NO:54-59之胺基酸序列。VH之實例序列包括SEQ ID NO:61-64或與SEQ ID NO:61-64中之任一者具有至少85%、90%或95%序列同一性之序列。VL之實例序列包括SEQ ID NO:16及65-67或與SEQ ID NO:16及65-67中之任一者具有至少85%、90%或95%序列同一性之序列。
在一個實施例中,VH包括SEQ ID NO:61之胺基酸序列或與SEQ ID NO:61具有至少85%、90%或95%序列同一性之序列。在一個實施例中,VL包括SEQ ID NO:65之胺基酸序列或與SEQ ID NO:65具有至少85%、90%或95%序列同一性之序列。
在一些實施例中,亦提供了與此等抗體中之任一者結合FAPα上相同抗原決定基之抗體及其抗原結合片段。在一些實施例中,亦提供了與此等抗體中之任一者競爭結合FAPα之抗體及其抗原結合片段,諸如一種抗體及其抗原結合片段,其具有包括SEQ ID NO:61之胺基酸序列之VH及包括SEQ ID NO:65之胺基酸序列之VL。
在一個實施例中,VH包括SEQ ID NO:63之胺基酸序列或與SEQ ID NO:63具有至少85%、90%或95%序列同一性之序列。在一個實施例中,VL包括SEQ ID NO:65之胺基酸序列或與SEQ ID NO:65具有至少85%、90%或95%序列同一性之序列。
在一些實施例中,亦提供了與此等抗體中之任一者結合FAPα上相同抗原決定基之抗體及其抗原結合片段。在一些實施例中,亦提供了與此等抗體中之任一者競爭結合FAPα之抗體及其抗原結合片段,諸如一種抗體及其抗原結合片段,其具有包括SEQ ID NO:63之胺基酸序列之VH及包括SEQ ID NO:65之胺基酸序列之VL。
在一個實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括SEQ ID NO:54、60及56-59之胺基酸序列。VH之實例序列包括SEQ ID NO:15或與SEQ ID NO:15中之任一者具有至少85%、90%或95%序列同一性之序列。VL之實例序列包括SEQ ID NO:16及65-67或與SEQ ID NO:16及65-67中之任一者具有至少85%、90%或95%序列同一性之序列。
在一個實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括SEQ ID NO:68-73之胺基酸序列。VH之實例序列包括SEQ ID NO:1及74-79或與SEQ ID NO:1及74-79中之任一者具有至少85%、90%或95%序列同一性之序列。VL之示例序列包括SEQ ID NO:2及80-86或與SEQ ID NO:2及80-86中之任一者具有至少85%、90%或95%序列同一性之序列。
在一個實施例中,VH包括SEQ ID NO:76之胺基酸序列或與SEQ ID NO:76具有至少85%、90%或95%序列同一性之序列。在一個實施例中,VL包括SEQ ID NO:82之胺基酸序列或與SEQ ID NO:82具有至少85%、90%或95%序列同一性之序列。
在一些實施例中,亦提供了與此等抗體中之任一者結合FAPα上相同抗原決定基之抗體及其抗原結合片段。在一些實施例中,亦提供了與此等抗體中之任一者競爭結合FAPα之抗體及其抗原結合片段,諸如一種抗體及其抗原結合片段,其具有包括SEQ ID NO:76之胺基酸序列之VH及包括SEQ ID NO:82之胺基酸序列之VL。
在一個實施例中,VH包括SEQ ID NO:77之胺基酸序列或與SEQ ID NO:77具有至少85%、90%或95%序列同一性之序列。在一個實施例中,VL包括SEQ ID NO:82之胺基酸序列或與SEQ ID NO:82具有至少85%、90%或95%序列同一性之序列。
在一些實施例中,亦提供了與此等抗體中之任一者結合FAPα上相同抗原決定基之抗體及其抗原結合片段。在一些實施例中,亦提供了與此等抗體中之任一者競爭結合FAPα之抗體及其抗原結合片段,諸如一種抗體及其抗原結合片段,其具有包括SEQ ID NO:77之胺基酸序列之VH及包括SEQ ID NO:82之胺基酸序列之VL。
在一些實施例中,該抗體或其片段具有ADCC能力。適用於製造具有ADCC能力之抗體的方法及材料係此項技術中已知的,諸如藉由使用合適之Fc片段或減少/去除岩藻糖基化。
在一些實施例中,CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包括(a) SEQ ID NO:29-34之胺基酸序列;(b) SEQ ID NO:42-47之胺基酸序列;(c) SEQ ID NO:54-59或SEQ ID NO:54、60及56-59之胺基酸序列;或(d) SEQ ID NO:68-73之胺基酸序列,其中宿舍哦胡CDR序列中之每一者均包括一個、兩個或三個保守胺基酸取代。
「保守胺基酸取代」係其中胺基酸殘基經具有相似側鏈之胺基酸殘基置換的取代。具有相似側鏈之胺基酸殘基家族已在此項技術中被定義,包括鹼性側鏈(例如離胺酸、精胺酸、組胺酸)、酸性側鏈(例如天冬胺酸、麩胺酸)、不帶電荷之極性側鏈(例如甘胺酸、天冬醯胺、麩醯胺酸、絲胺酸、蘇胺酸、酪胺酸、半胱胺酸)、非極性側鏈(例如丙胺酸、纈胺酸、白胺酸、異白胺酸、脯胺酸、苯丙胺酸、甲硫胺酸、色胺酸)、β分支鏈側鏈(例如蘇胺酸、纈胺酸、異白胺酸)及芳族側鏈(例如酪胺酸、苯丙胺酸、色胺酸、組胺酸)。因此,免疫球蛋白多肽中之非必需胺基酸殘基較佳經來自相同側鏈家族之另一個胺基酸殘基置換。在另一個實施例中,一串胺基酸可以經側鏈家族成員之順序及/或組成不同但結構上相似之串置換。
下表中提供了保守胺基酸取代之非限制性實例,其中相似性得分為0或更高的表明兩個胺基酸之間的保守取代。
表 A. 胺基酸相似性矩陣
表 B. 保守胺基酸取代
C | G | P | S | A | T | D | E | N | Q | H | K | R | V | M | I | L | F | Y | W | |
W | -8 | -7 | -6 | -2 | -6 | -5 | -7 | -7 | -4 | -5 | -3 | -3 | 2 | -6 | -4 | -5 | -2 | 0 | 0 | 17 |
Y | 0 | -5 | -5 | -3 | -3 | -3 | -4 | -4 | -2 | -4 | 0 | -4 | -5 | -2 | -2 | -1 | -1 | 7 | 10 | |
F | -4 | -5 | -5 | -3 | -4 | -3 | -6 | -5 | -4 | -5 | -2 | -5 | -4 | -1 | 0 | 1 | 2 | 9 | ||
L | -6 | -4 | -3 | -3 | -2 | -2 | -4 | -3 | -3 | -2 | -2 | -3 | -3 | 2 | 4 | 2 | 6 | |||
I | -2 | -3 | -2 | -1 | -1 | 0 | -2 | -2 | -2 | -2 | -2 | -2 | -2 | 4 | 2 | 5 | ||||
M | -5 | -3 | -2 | -2 | -1 | -1 | -3 | -2 | 0 | -1 | -2 | 0 | 0 | 2 | 6 | |||||
V | -2 | -1 | -1 | -1 | 0 | 0 | -2 | -2 | -2 | -2 | -2 | -2 | -2 | 4 | ||||||
R | -4 | -3 | 0 | 0 | -2 | -1 | -1 | -1 | 0 | 1 | 2 | 3 | 6 | |||||||
K | -5 | -2 | -1 | 0 | -1 | 0 | 0 | 0 | 1 | 1 | 0 | 5 | ||||||||
H | -3 | -2 | 0 | -1 | -1 | -1 | 1 | 1 | 2 | 3 | 6 | |||||||||
Q | -5 | -1 | 0 | -1 | 0 | -1 | 2 | 2 | 1 | 4 | ||||||||||
N | -4 | 0 | -1 | 1 | 0 | 0 | 2 | 1 | 2 | |||||||||||
E | -5 | 0 | -1 | 0 | 0 | 0 | 3 | 4 | ||||||||||||
D | -5 | 1 | -1 | 0 | 0 | 0 | 4 | |||||||||||||
T | -2 | 0 | 0 | 1 | 1 | 3 | ||||||||||||||
A | -2 | 1 | 1 | 1 | 2 | |||||||||||||||
S | 0 | 1 | 1 | 1 | ||||||||||||||||
P | -3 | -1 | 6 | |||||||||||||||||
G | -3 | 5 | ||||||||||||||||||
C | 12 |
胺基酸 | 取代為 |
丙胺酸 | D-Ala、Gly、Aib、β-Ala、L-Cys、D-Cys |
精胺酸 | D-Arg、Lys、D-Lys、Orn D-Orn |
天冬醯胺 | D-Asn、Asp、D-Asp、Glu、D-Glu Gln、D-Gln |
天冬胺酸 | D-Asp、D-Asn、Asn、Glu、D-Glu、Gln、D-Gln |
半胱胺酸 | D-Cys、S-Me-Cys、Met、D-Met、Thr、D-Thr、L-Ser、D-Ser |
麩醯胺酸 | D-Gln、Asn、D-Asn、Glu、D-Glu、Asp、D-Asp |
麩胺酸 | D-Glu、D-Asp、Asp、Asn、D-Asn、Gln、D-Gln |
甘胺酸 | Ala、D-Ala、Pro、D-Pro、Aib、β-Ala |
異白胺酸 | D-Ile、Val、D-Val、Leu、D-Leu、Met、D-Met |
白胺酸 | Val、D-Val、Met、D-Met、D-Ile、D-Leu、Ile |
離胺酸 | D-Lys、Arg、D-Arg、Orn、D-Orn |
甲硫胺酸 | D-Met、S-Me-Cys、Ile、D-Ile、Leu、D-Leu、Val、D-Val |
苯丙胺酸 | D-Phe、Tyr、D-Tyr、His、D-His、Trp、D-Trp |
脯胺酸 | D-Pro |
絲胺酸 | D-Ser、Thr、D-Thr、allo-Thr、L-Cys、D-Cys |
蘇胺酸 | D-Thr、Ser、D-Ser、allo-Thr、Met、D-Met、Val、D-Val |
酪胺酸 | D-Tyr、Phe、D-Phe、His、D-His、Trp、D-Trp |
纈胺酸 | D-Val、Leu、D-Leu、Ile、D-Ile、Met、D-Met |
一般熟習此項技術者亦將理解,本文揭示之抗體可以經修飾,使得其在胺基酸序列上與其所源自之天然存在之結合多肽不同。例如,源自指定蛋白質之多肽或胺基酸序列可以與起始序列相似,例如與起始序列具有一定百分比之同一性,例如其可以與起始序列具有60%、70%、75%、80%、85%、90%、95%、98%或99%之同一性。
在一些實施例中,抗CCR8抗體係修飾之mAb,其包含修飾之重鏈恆定區,諸如非岩藻糖基化之重鏈,其與未修飾之mAb相比以更高的親和力結合介導增強之ADCC之活化Fcγ受體。在一些實施例中,抗CCR8抗體包含人類IgGl變體之重鏈,其包括L234Y、L235Q、G236W、S239D/M、F243L、H268D、D270E、R292P、S298A、Y300L、V305I、K326D、A330L/M、I332E、K334A/E、P396L (其增強ADCC功能) (均為歐盟編號)中之單個或組合。
在某些實施例中,抗體包含通常不與抗體相關之胺基酸序列或一個或多個部分。下面將更詳細地描述例示性修飾。例如,本揭示之抗體可以包含柔性接頭序列或可以經修飾以添加功能性部分(例如,PEG、藥物、毒素或標記物)。
本揭示之抗體、變體或其衍生物包括經修飾之衍生物,亦即藉由任何類型之分子與抗體之共價連接而被修飾,使得共價連接不會阻止抗體與抗原決定基結合。例如但不限於,抗體可以例如藉由糖基化、乙醯化、聚乙二醇化、磷酸化、磷酸化、醯胺化、藉由已知之保護/封閉基團衍生化、蛋白水解切割、與細胞配體或其他蛋白質之連接等來修飾。可以藉由已知技術進行眾多化學修飾中之任何一種,該等已知技術包括但不限於特異性化學切割、乙醯化、甲醯化、衣黴素之代謝合成等。另外,抗體可以含有一種或多種非經典胺基酸。
抗體 - 藥物結合物
GPRC5D在某些惡性血液細胞(諸如多發性骨髓瘤細胞)上過表現。因此,本揭示之抗體及片段可以用於靶向彼等惡性細胞以抑制、失活或破壞。在一個實例中,抗體或片段與有助於抑制、失活或破壞惡性細胞之試劑結合。本文顯示該等抗體能夠誘導GPRC5D介導之內吞作用。
在一些實施例中,該抗體或片段可以與治療劑、前藥、肽、蛋白質、酶、病毒、脂質、生物反應調節劑、藥劑或PEG結合。在一些實施例中,結合劑可為短干擾RNA (siRNA)或固有調節劑,諸如干擾素基因刺激因子(STING)促效劑或TLR7/8促效劑。
在一個實施例中,本揭示之抗體或片段與藥物部分共價連接。藥物部分可以係與抗體上之結合點反應之基團或被修飾以包括與抗體上之結合點反應之基團。例如,藥物部分可以藉由烷基化(例如,在ε-胺基離胺酸或抗體之N-末端)、氧化碳水化合物之還原胺化、羥基及羧基之間的酯交換、胺基或羧基之醯胺化及與硫醇基之結合來連接。
在一些實施例中,每個抗體分子所結合之藥物部分之數目p之範圍平均為1至8;1至7、1至6、1至5、1至4、1至3或1至2。在一些實施例中,p之範圍平均為2至8、2至7、2至6、2至5、2至4或2至3。在其他實施例中,p平均為1、2、3、4、5、6、7或8。在一些實施例中,p之範圍平均為約1至約20、約1至約10、約2至約10、約2至約9、約1至約8、約1至約7、約1至約6、約1至約5、約1至約4、約1至約3、或約1至約2。在一些實施例中,p之範圍為約2至約8、約2至約7、約2至約6、約2至約5、約2至約4或約2至約3。
例如,當蛋白質之化學活化導致形成游離硫醇基時,蛋白質可以與巰基反應劑結合。在一個態樣中,該試劑係一種實質上對游離硫醇基特異之試劑。此類試劑包括例如馬來醯亞胺、鹵代乙醯胺(例如碘代、溴代或氯代)、鹵酯(例如碘代、溴代或氯代)、鹵代甲基酮(例如碘代、溴代或氯代)、苄基鹵化物(例如碘化物、溴化物或氯化物)、乙烯基碸及吡啶巰基。
藥物可以藉由接頭與抗體或片段連接。合適之接頭包括例如可切割的及不可切割的接頭。可切割接頭通常在細胞內條件下易於切割。合適之可切割接頭包括例如可被細胞內蛋白酶(諸如溶酶體蛋白酶或內體蛋白酶)切割之肽接頭。在例示性實施例中,接頭可為二肽接頭,例如纈胺酸-瓜胺酸(val-cit)、苯丙胺酸-離胺酸(phe-lys)接頭或馬來醯亞胺己酸-纈胺酸-瓜胺酸-對胺基苄氧羰基(mc-Val-Cit-PABA)接頭。另一種接頭係磺基琥珀醯亞胺基-4-[N-馬來醯亞胺甲基]環己烷-1-羧酸酯(smcc)。Sulfo-smcc結合經由與巰基(sulfhydryl) (硫醇基,-SH)反應之馬來醯亞胺基團發生,而其Sulfo-NHS酯對一級胺(如在離胺酸及蛋白質或肽N-端發現)具有反應性。另一種接頭係馬來醯亞胺己醯基(mc)。其他合適之接頭包括在特定pH或pH範圍可水解之接頭,諸如腙接頭。其他合適之可切割接頭包括二硫鍵接頭。接頭可以與抗體共價結合,以達到抗體必須在細胞內降解以釋放藥物之程度,例如mc接頭等。
接頭可以包括用於與抗體連接之基團。例如,接頭可以包括胺基、羥基、羧基或巰基反應基團(例如,馬來醯亞胺、鹵代乙醯胺(例如,碘代、溴代或氯代)、鹵酯(例如,碘代、溴代或氯代)、鹵甲基酮(例如,碘代、溴代或氯代)、苄基鹵化物(例如碘化物、溴化物或氯化物)、乙烯基碸及吡啶巰基)。
在一些實施例中,藥物部分係細胞毒素劑或細胞生長抑制劑、免疫抑制劑、放射性同位素、毒素等。結合物可以用於抑制腫瘤細胞或癌細胞之增殖,引起腫瘤或癌細胞之凋亡,或用於治療患者之癌症。結合物可以相應地用於各種環境以治療動物癌症。結合物可以用於將藥物遞送至腫瘤細胞或癌細胞。不受理論束縛,在一些實施例中,結合物與表現GPRC5D之癌細胞結合或相關,並且結合物及/或藥物可以藉由受體介導之內吞作用被攝入至腫瘤細胞或癌細胞內。
一旦進入細胞,結合物內(例如,在接頭中)之一個或多個特定肽序列被一種或多種腫瘤細胞或癌細胞相關之蛋白酶水解切割,導致藥物釋放。然後釋放之藥物在細胞內自由遷移並誘導細胞毒性或細胞抑制或其他活性。在一些實施例中,藥物在腫瘤細胞或癌細胞外自抗體切割下來,藥物隨後穿透細胞,或在細胞表面起作用。
藥物部分或有效載荷之實例選自由以下組成之群:DM1 (美登素(maytansine)、N2'-脫乙醯基-N2'-(3-巰基-1-側氧基丙基)-或N2'-脫乙醯基-N2'-(3-巰基-1-側氧基丙基)-美登素)、mc-MMAD (6-馬來醯亞胺己醯基-單甲基澳瑞他汀-D或N-甲基-L-纈胺醯基-N-[(1S,2R)-2-甲氧基-4-[(2S)-2-[(1R,2R)-1-甲氧基-2-甲基-3-側氧基-3-[[(1S)-2-苯基-1-(2-噻唑基)乙基]胺基]丙基]-1-吡咯啶基]-1-[(1S)-1-甲基丙基]-4-側氧基丁基]-N-甲基-(9Cl)-L-纈胺醯胺)、mc-MMAF (馬來醯亞胺己醯基-單甲基澳瑞他汀F或N-[6-(2,5-二氫-2,5-二側氧基-1H-吡咯-1-基)-1-側氧基己基]-N-甲基-L-纈胺醯基-L-纈胺醯基-(3R,4S,5S)-3-甲氧基-5-甲基-4-(甲胺基)庚醯基-(αR,βR,2S)-β-甲氧基-α-甲基-2-吡咯啶丙醯基-L-苯丙胺酸)及mc-Val-Cit-PABA-MMAE (6-馬來醯亞胺己醯基-ValcCit-(對胺基苄氧羰基)-單甲基澳瑞他汀E或N-[[[4-[[N-[6-(2,5-二氫-2,5-二側氧基-1H-吡咯-1-基)-1-側氧基己基]-L-纈胺醯基-N5-(胺基羰基)-L-鳥胺醯基]胺基]苯基]甲氧基]羰基]-N-甲基-L-纈胺醯基-N-[(1S,2R)-4-[(2S)-2-[(1R,2R)-3-[[(1R,2S)-2-羥基-1-甲基-2-苯乙基]胺基]-1-甲氧基-2-甲基-3-側氧基丙基]-1-吡咯啶基]-2-甲氧基-1-[(1S)-1-甲基丙基]-4-側氧基丁基]-N-甲基-L-纈胺醯胺)。DM1係微管蛋白抑制劑美登素之衍生物,而MMAD、MMAE及MMAF係澳瑞他汀衍生物。在一些實施例中,藥物部分選自由mc-MMAF及mc-Val-Cit-PABA-MMAE組成之群。在一些實施例中,藥物部分係美登醇(maytansinoid)或澳瑞他汀。
抗體或片段可以與治療劑結合或融合,其可以包括可偵測之標記物(諸如放射性標記物)、免疫調節劑、激素、酶、寡核苷酸、光活性治療劑或診斷劑、細胞毒素劑(其可為藥物或毒素)、超聲增強劑、非放射性標記、其組合,及此項技術中已知的其他此類試劑。
可以藉由將抗體與化學發光化合物偶聯,從而對抗體進行可偵測地標記。然後藉由偵測在化學反應過程中產生之發光的存在來確定帶化學發光標籤之抗原結合多肽之存在。特別有用之化學發光標記化合物之實例係魯米諾(luminol)、異魯米諾(isoluminol)、熱敏吖啶酯(theromatic acridinium ester)、咪唑、吖啶鹽及草酸酯。
亦可以使用螢光發射金屬(例如
152Eu或鑭系元素之其他金屬)可偵測地標記抗體。可以使用諸如二乙烯三胺五乙酸(DTPA)或乙二胺四乙酸(EDTA)之金屬螯合基團將此等金屬連接至抗體。將不同部分結合至抗體上之技術係所熟知的,參見,例如Arnon等人,「Monoclonal Antibodies For Immunotargeting Of Drugs In Cancer Therapy」,Monoclonal Antibodies And Cancer Therapy,Reisfeld等人(編輯),第243-56頁(Alan R. Liss公司(1985));Hellstrom等,「Antibodies For Drug Delivery」,Controlled Drug Delivery(第二版), Robinson等人(編輯),Marcel Dekker公司,第623-53頁(1987);Thorpe,「Antibody Carriers Of Cytotoxic Agents In Cancer Therapy: A Review」,Monoclonal Antibodies '84: Biological And Clinical Applications,Pinchera等人(編輯),第475-506頁(1985);「Analysis, Results, And Future Prospective Of The Therapeutic Use Of Radiolabeled Antibody In Cancer Therapy」,Monoclonal Antibodies For Cancer Detection And Therapy,Baldwin等人(編輯),學術出版社,第303-16頁(1985),及Thorpe等人「The Preparation And Cytotoxic Properties Of Antibody-Toxin Conjugates」,
Immunol. Rev.(52:119-58(1982))。
雙功能分子及聯合療法
GPRC5D在某些惡性血液細胞(諸如多發性骨髓瘤細胞)上過表現。因此,本揭示之抗體及片段可以用於靶向彼等惡性細胞以抑制、失活或破壞。在一些實施例中,提供了靶向GPRC5D蛋白及免疫細胞之雙功能或雙特異性分子/抗體。
在一些實施例中,免疫細胞係選自由T細胞、B細胞、單核細胞、巨噬細胞、中性粒細胞、樹突細胞、吞噬細胞、自然殺手細胞、嗜酸性粒細胞、嗜鹼性粒細胞及肥大細胞組成之群。免疫細胞上可以被靶向之分子包括,例如,CD3、CD16、CD19、CD28、CD64及4-1BB (亦稱為CD137)。其他實例包括PD-1、CTLA-4、LAG-3 (亦稱為CD223)、CD28、CD122、TIM3、OX-40或OX40L、CD40或CD40L、LIGHT、ICOS/ICOSL、GITR/GITRL、TIGIT、CD27、VISTA、B7H3、B7H4、HEVM或BTLA (亦稱為CD272)、殺傷細胞免疫球蛋白樣受體(KIR)及CD47。雙特異性之具體實例包括但不限於GPRC5D/CD3。
亦提供了不同形式之雙特異性抗體。在一些實施例中,抗PD-L1片段及第二片段中之每一者各自獨立地選自Fab片段、單鏈可變片段(scFv)或單域抗體。在一些實施例中,雙特異性抗體進一步包括Fc片段。
編碼抗體之多核苷酸及製備抗體的方法
本揭示亦提供了編碼本揭示之抗體、其變體或衍生物之分離之多核苷酸或核酸分子。本揭示之多核苷酸可以在相同多核苷酸分子上或在不同的多核苷酸分子上編碼抗原結合多肽、其變體或衍生物之整個重鏈可變區及輕鏈可變區。另外,本揭示之多核苷酸可以在相同多核苷酸分子上或在不同的多核苷酸分子上編碼抗原結合多肽、其變體或衍生物之重鏈可變區及輕鏈可變區之部分。
製備抗體的方法係此項技術中所熟知的並且在本文中描述。在某些實施例中,本揭示之抗原結合多肽之可變區及恆定區均係全人類的。可以使用此項技術中描述的及如本文描述的技術製備全人類抗體。例如,針對特定抗原之全人類抗體可以藉由向轉基因動物投與該抗原來製備,該轉基因動物已經修飾以產生此抗體以對抗原攻擊作出反應,但其內源性基因座已被禁用。可以用於製備此抗體之例示性技術在美國專利:6,150,584、6,458,592、6,420,140中進行了描述,其以全文引用之方式併入。
治療方法
如本文所述,本揭示之抗體、變體或衍生物可以用於某些治療及診斷方法。
本揭示進一步係關於基於抗體之療法,其涉及將本揭示之抗體投與至患者(諸如動物、哺乳動物及人類)以治療本文之一種或多種病症或病狀。本揭示之治療性化合物包括但不限於本揭示之抗體(包括如本文之其變體及衍生物)及編碼本揭示之抗體(包括如本文之其變體及衍生物)之核酸或多核苷酸。
本揭示之抗體亦可以用於治療或抑制癌症。如上所述,GPRC5D可以在癌細胞,特別是多發性骨髓瘤中過表現。已表明抑制GPRC5D可以用於治療癌症。
因此,在一些實施例中,提供了用於治療有需要患者之癌症的方法。在一個實施例中,該方法需要向患者投與有效量之本揭示之抗體。在一些實施例中,患者之至少一種癌細胞過表現GPRC5D。在一些實施例中,該抗體或片段具有ADCC能力。在一些實施例中,該抗體或片段進一步包含細胞毒素劑。在一些實施例中,抗體係雙特異性的,其進一步靶向免疫細胞,諸如細胞毒性T細胞。
在本揭示中亦提供了細胞療法,諸如嵌合抗原受體(CAR)T細胞(或NK細胞、巨噬細胞)療法。可以使用合適的細胞,其與本揭示之抗GPRC5D抗體接觸(或替代地經工程改造以表現本揭示之抗GPRC5D抗體)。經過此類接觸或工程改造後,然後可以將細胞引入需要治療之癌症患者中。癌症患者可以患有如本文所揭示之任何類型之癌症。細胞(例如,T細胞)可為例如,瘤浸潤性T淋巴細胞、CD4+T細胞、CD8+T細胞、自然殺手細胞(NK)、巨噬細胞或其組合,但不限於此。
在一些實施例中,該細胞係自癌症患者自身分離的。在一些實施例中,該細胞由供體或細胞庫提供。當自癌症患者中分離出細胞時,不期望的免疫反應可以被最小化。
癌症之非限制性實例包括血液癌症,諸如多發性骨髓瘤。其他實例包括白血病(包括急性白血病(例如,急性淋巴細胞白血病、急性髓細胞白血病(包括骨髓母細胞性、早幼粒細胞性、骨髓單核細胞性、單核細胞性及紅細胞性白血病))及慢性白血病(例如,慢性髓細胞(粒細胞)白血病及慢性淋巴細胞白血病))及淋巴瘤(例如,霍奇金病及非霍奇金病)及多發性骨髓瘤。
用於任何特定患者之具體劑量及治療方案將取決於多種因素,包括所使用之特定抗體、其變體或衍生物,患者之年齡、體重、總體健康狀況、性別、飲食,及給藥時間、排泄率、聯合用藥及正在治療之特定疾病之嚴重程度。醫療護理人類員對此等因素之判斷在本領域普通技術範疇內。該量亦將取決於待治療之個體患者、給藥途徑、製劑類型、所用化合物之特性、疾病之嚴重程度及所需之效果。所使用之量可以藉由此項技術中熟知之藥理學及藥代動力學原理確定。
抗體或變體之投與方法包括但不限於皮內、肌內、腹膜內、靜脈內、皮下、鼻內、硬膜外及經口途徑。抗原結合多肽或組合物可以藉由任何方便之途徑投與,例如藉由輸注或團注,藉由經上皮或黏膜皮膚內層(例如口腔黏膜、直腸及腸黏膜等)吸收,並且可以與其他生物活性劑一起投與。因此,含有本揭示之抗原結合多肽之醫藥組合物可以經口、經直腸、非經腸、腦池內、陰道內、腹膜內、局部(如藉由粉劑、軟膏、滴劑或透皮貼劑)、經頰給藥,或作為口腔或鼻腔噴霧劑。
如本文所用之術語「非經腸」係指給藥方式,包括靜脈內、肌內、腹膜內、胸骨內、皮下及關節內注射及輸注。
給藥可以係全身的或局部的。此外,可能需要藉由任何合適之途徑(包括腦室內及鞘內注射)將本揭示之抗體引入中樞神經系統;腦室內注射可以藉由腦室內導管來促進,例如,連接至儲液器(諸如Ommaya儲液器)之腦室內導管。亦可以採用肺部給藥,例如,藉由使用吸入器或霧化器,及與霧化劑一起調配。
可能需要將本揭示之抗原結合多肽或組合物局部投與至需要治療之區域;其可以藉由例如但不限於手術期間局部輸注、局部應用(例如手術後與傷口敷料結合)、藉由注射、藉由導管、藉由栓劑或藉由植入物來實現,該植入物係多孔、無孔或凝膠狀材料,包括膜,例如唾液酸膜或纖維。較佳地,當投與本揭示之蛋白質(包括抗體)時,必須注意使用蛋白質不吸收之材料。
可以藉由標準臨床技術確定可有效治療、抑制及預防炎性、免疫或惡性疾病、病症或病狀之本揭示抗體之量。另外,可以視情況地採用活體外測定來幫助確定最佳劑量範圍。製劑中採用之精確劑量亦取決於給藥途徑及疾病、病症或病狀之嚴重性,並且應根據從業者之判斷及每個患者之情況來決定。有效劑量可以自來自活體外或動物模型測試系統之劑量反應曲線中推斷出來。
作為一般建議,投與至患者之本揭示之抗原結合多肽之劑量通常為0.1 mg/kg至100 mg/kg患者體重,0.1 mg/kg至20 mg/kg患者體重,或1 mg/kg至10 mg/kg患者體重。通常,由於對外源多肽之免疫反應,人類抗體比來自其他物種之抗體在人類活體內具有更長的半衰期。因此,較低劑量之人類抗體及較低頻率之給藥通常係可能的。進一步地,本揭示抗體之給藥劑量及頻率可以藉由修飾(例如脂化)以增強抗體之攝入及組織滲透(例如,進入腦中)來降低。
在另外的實施例中,本揭示之組合物與細胞介素聯合投與。可以與本揭示之組合物一起投與之細胞介素包括但不限於IL-2、IL-3、IL-4、IL-5、IL-6、IL-7、IL-10、IL-12、IL-13、IL-15、抗CD40、CD40L及TNF-α。
在另外的實施例中,本揭示之組合物與其他治療或預防方案(例如放射療法)聯合投與。
診斷方法
在某些腫瘤樣本中觀察到GPRC5D之過表現,並且具有GPRC5D過表現細胞之患者可能對用本揭示之抗GPRC5D抗體之治療有反應。因此,本揭示之抗體亦可以用於診斷及預後目的。
可自患者獲得較佳包括細胞之樣本,該患者可為癌症患者或需要診斷之患者。該細胞係腫瘤組織或腫瘤塊、血液樣本、尿液樣本或來自患者之任何樣本之細胞。在對樣本進行視情況預處理之後,可以在允許抗體與樣本中潛在存在之GPRC5D蛋白相互作用之條件下,將樣本與本揭示之抗體一起孵育。可以使用諸如ELISA的方法,利用抗GPRC5D抗體,來偵測樣本中GPRC5D蛋白之存在。
樣本中GPRC5D蛋白之存在(視情況以一定之量或濃度)可以用於診斷癌症,作為患者適合用抗體治療之指示,或作為患者對癌症治療有(或沒有)反應之指示。對於預後方法,可以在開始癌症治療後,在某些階段進行一次、兩次或更多次偵測,以指示治療進展。
組合物
本揭示亦提供了醫藥組合物。此類組合物包含有效量之抗體及可接受之載劑。在一些實施例中,該組合物進一步包括第二抗癌劑(例如,免疫檢查點抑制劑)。
在具體實施例中,術語「醫藥學上可接受之」係指由聯邦或州政府之監管機構批准或在美國藥典或其他公認之藥典中列出之用於動物的,更特別地用於人類的。進一步地,「醫藥學上可接受之載劑」通常為任何類型之無毒固體、半固體或液體填充劑、稀釋劑、封裝材料或製劑助劑。
術語「載劑」係指與治療劑一起投與之稀釋劑、輔助劑、賦形劑或媒劑。此類醫藥載劑可為無菌液體,諸如水及油,包括石油、動物、植物或合成來源之彼等者,諸如花生油、大豆油、礦物油、芝麻油等。當醫藥組合物靜脈內給藥時,水係較佳載劑。鹽溶液及葡萄糖水溶液及甘油溶液亦可以用作液體載劑,特別是用於注射溶液。合適之醫藥賦形劑包括澱粉、葡萄糖、乳糖、蔗糖、明膠、麥芽、大米、麵粉、白堊、矽膠、硬脂酸鈉、單硬脂酸甘油酯、滑石、氯化鈉、脫脂奶粉、甘油、丙烯、乙二醇、水、乙醇等。若需要,該組合物亦可以含有少量濕潤劑或乳化劑,或pH緩衝劑,諸如乙酸鹽、檸檬酸鹽或磷酸鹽。亦設想了抗菌劑,諸如苯甲醇或對羥基苯甲酸甲酯;抗氧化劑,諸如抗壞血酸或亞硫酸氫鈉;螯合劑,諸如乙二胺四乙酸;及用於調節張度(tonicity)之試劑,諸如氯化鈉或右旋糖(dextrose)。此等組合物可以採取溶液、懸浮液、乳劑、錠劑、丸劑、膠囊、粉劑、緩釋製劑等形式。該組合物可以與傳統的黏合劑及載劑(例如甘油三酯)一起配製成栓劑。口服製劑可以包括標準載劑,諸如藥用級之甘露醇、乳糖、澱粉、硬脂酸鎂、糖精鈉、纖維素、碳酸鎂等。合適之醫藥載劑之實例在E. W. Martin之《Remington's Pharmaceutical Sciences》中描述,其以引用之方式併入本文中。此類組合物將包含治療有效量之抗原結合多肽,較佳地以純化形式,與適量之載劑一起,以提供用於向患者適當投與之形式。該製劑應適合於給藥方式。可以將非經腸製劑封裝在玻璃或塑料製成之安瓿、一次性注射器或多劑量小瓶中。
在一個實施例中,根據常規程序將該組合物配製成適於靜脈內投與至人類之醫藥組合物。通常,用於靜脈內給藥之組合物係在無菌等滲水性緩衝液中之溶液。必要時,該組合物亦可以包括增溶劑及局部麻醉劑,諸如利多卡因(lignocaine),以減輕注射部位之疼痛。通常,將成分單獨提供或以單位劑型混合提供,例如,作為乾燥之凍乾粉或無水濃縮物提供在密閉容器中,諸如指示活性劑之量之安瓿或小藥囊中。在組合物將藉由輸注投與之情況下,可以用裝有無菌藥用級水或鹽水之輸液瓶分配。在組合物藉由注射投與之情況下,可以提供一安瓿之無菌注射用水或鹽水,以使得可以在投與之前將成分混合。
本揭示之化合物可以配製成中性或鹽形式。醫藥學上可接受之鹽包括彼等與陰離子形成之鹽,諸如彼等源自鹽酸、磷酸、乙酸、草酸、酒石酸等之鹽,及彼等與陽離子形成之鹽,例如源自氫氧化鈉、氫氧化鉀、氫氧化銨、氫氧化鈣、氫氧化鐵、異丙胺、三乙胺、2-乙基胺基乙醇、組胺酸、普魯卡因等之鹽。
實例 實例 1 :針對人類 GPRC5D 之鼠類單株抗體之產生
用人類GPRC5D蛋白免疫不同品系之小鼠,並相應產生雜交瘤。收集了二十多個雜交瘤純系用於進一步分析。
測試自雜交瘤上清液收穫之抗體與在CHO K1細胞上表現之人類GPRC5D蛋白之結合。自燒瓶中收穫穩定表現人類GPRC5D之CHO-K1細胞。將100 μl 1×10
6個細胞/ml之細胞與以3倍連續稀釋之鼠類抗體在冰上孵育30分鐘。用200 μl FACS緩衝液洗滌兩次後,將細胞與二抗在冰上孵育30分鐘。用200 μl FACS緩衝液洗滌細胞兩次並轉移至BD Falcon 5 ml管中並藉由FACS分析。研究結果表明,鼠類抗體可以高EC50與人類GPRC5D結合(
圖 1)。結果如下表所示。其均表現出良好的結合活性。
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
2D3C12 | 46110 | 835137 | 0.4535 | 1.132 | 2.841 | 789027 |
6G10D9 | 6870 | 1429638 | 0.9116 | 0.9535 | 8.159 | 1422768 |
11C1H10 | 40235 | 859162 | 0.5274 | 1.101 | 3.368 | 818927 |
14C2A11C6 | 5573 | 728662 | 0.9934 | 0.8801 | 9.849 | 723089 |
14C2F7C6 | 15616 | 751279 | 0.9634 | 0.9615 | 9.193 | 735663 |
14F3H2 | 20428 | 872785 | 0.8744 | 1.146 | 7.489 | 852357 |
21C3C11B3 | 57013 | 1508205 | 0.6538 | 1.1 | 4.506 | 1451192 |
26E1D12 | 52742 | 677713 | 0.2246 | 1.303 | 1.677 | 624970 |
29A7H11B9D3 | 71394 | 1385928 | 0.4219 | 1.259 | 2.642 | 1314534 |
29A7H11H4C12 | 43439 | 1461931 | 0.7377 | 1.109 | 5.466 | 1418492 |
29B2C10 | 68634 | 1607305 | 0.6201 | 1.305 | 4.17 | 1538671 |
31H11C10H7 | 16791 | 961550 | 0.9534 | 1.134 | 8.983 | 944759 |
34D3F8B5 | -16109 | 1407656 | 1.084 | 0.7475 | 12.12 | 1423765 |
34D3H1 | -13314 | 1412131 | 0.8843 | 0.8042 | 7.662 | 1425446 |
34D4A10 | 2737 | 921851 | 1.019 | 0.8496 | 10.44 | 919114 |
36F11E9H3 | 13852 | 766682 | 0.8732 | 1.087 | 7.468 | 752830 |
37B9C4 | 10880 | 1758861 | 0.5917 | 0.9933 | 3.906 | 1747981 |
38A10E9A11 | 24016 | 1785041 | 0.9472 | 1.099 | 8.854 | 1761025 |
39D2B6 | 7833 | 1774093 | 0.5469 | 0.98 | 3.523 | 1766260 |
40A5B2 | 25394 | 1196144 | 0.5108 | 0.9236 | 3.242 | 1170750 |
57G11D4A10 | -22363 | 2089505 | 0.9703 | 0.8141 | 9.34 | 2111868 |
58F9G10 | -14744 | 2052463 | 0.9635 | 0.8313 | 9.194 | 2067207 |
次選殖了十四個雜交瘤並確定了VH/VL序列(見
表 1)。
表 1. 先導鼠類抗體之 VH/VL 序列
實例 2. 嵌合抗體與 GPRC5D 之結合
名稱 | 序列 (CDR 有下劃線 ) | SEQ ID NO: |
6G10D9 VH | QVQLQQSGAELARPGASVKMSCKASGYTFT TYTMH WVKQRPGQGLEWLG YINPSSGYTNYNQKFKD KATLTAGKSSSTAYMQLSSLTSEDSAVYYCAS LRSRGYFDY WGQGTTLTVSS | 1 |
6G10D9 VL | DIVMTQSQTFMSTSVGDRVRITC KASQNVGTAVV WYQQKTGQSPRLLIY SASNRYT GVPDRFTGSGSGTDFTLTISNMQSEDLADFFC QQYSSYPYT FGGGTKLEIK | 2 |
21C3C11B3 VH | QVQLQQSGAELVRPGTSVKVSCKASGYAFI NYLIE WIKQRPGQGLEWIG MINPGSGGTNYNEKFKD KATLTADKSSSTAYMQLSSLTSDDSAVYFCAR NWDV WGQGTTLTVSS | 3 |
21C3C11B3 VL | DVVMTQSPLSLPVSLGDQASVSC RSSQSLVHSTGNTYLH WYLQKPGQSPKLLIY KVSNRFS GVPDRFSGSGSGTDFTLKISRVEAEDLGVYFC SQSTHVPWT FGGGTKLEIK | 4 |
29B2C10 VH | EVQLQQSGPELVKPGASMKLSCKASGYSFT GYTMH WVKQSHGENLEWIG LINPYNGGTNYNQKFKG KATLTVDKSSSTAYMELLSLTSEDSAVYYCSR WGLRRAMDY WGQGTSVTVSS | 5 |
29B2C10 VL | DIVMTQSQKFMSTSVGDRVSVTC KASQNVGSNVA WYQQKPGQSPKALIY SASYRYS GVPDRFTGNGSGTDFTLTISNVQSEDLAEYFC QQYYNSPWT FGGGTKLEIK | 6 |
34D3H1 VH | EVHLVESGGDLVKPGGSLKLSCAASGFTFS SYGMS WVRQTPDKRLEWVA TISSGGSYTYYPDSVKG RFTISRDNAKNTLNLQMSSLKSEDTAMYYCAR QGGDAMDY WGQGTSVTVSS | 7 |
34D3H1 VL | DIVLTQSPATLSVTPGDSVSLSC RASQSINNNLH WYQQKSHESPRLLIK YASQSIS GIPSRFSGSGSGTDFTLSINSVETEDFGMYFC QQSNSRLT FGAGTKLELK | 8 |
37B9C4 VH | EVNLEESGGGLVQPGGSMKLSCVASGFTFS DYWMN WVRQSPEKGLEWVA EIRLKSNNYATHYAESVKG RFTISRDDSKSSVYLQMNNLRAEDTGIYYCTR PLLWFRRYYAMDY WGQGTSVTVSS | 9 |
37B9C4 VL | DIQMTQTTSSLSASLGDRITISC SASQGISNYLN WYQQKPDGTVKLLIY YTSSLHS GVPSRFSGSGSGTDYSLTISNLEPADIATYYC QQYSKLPFT FGSGTKLEIK | 10 |
38A10E9A11 VH | QVQLQQSGAELARPGASVKMSCKASGYTFT TYTMH WVKQRPGQGLEWIG YINPSSGYTNYNQKFKD KATLTAGKSSSTAYMQLSSLTSEDSAVYYCAS LRSRGYFDY WGRGTTLTVSS | 11 |
38A10E9A11 VL | DIVMTQSQKFLSTSVGDRVSITC KASQNVGTAVA WYQQKPGQSPKLLIY SASNRYT GVPDRFTGSGSGTDFTLTISNMQSEDLAGYFC QQYSSYPYT FGGGTKLEIK | 12 |
40A5B2 VH | EVQLQQSGPELVKPGASVKMSCKASGYTFT RNIMH WVKQKPGQGLEWIG YINPYNAGSKYNEKFKG KATLTSDISSSTAYMELSSLTSEDSAVYYCAR EEVYYRYGAWFAY WGHGTLVTVSA | 13 |
40A5B2 VL | DIVLTQSPASLAVSLGQRATISC RASQSVSTSSYSYMH WYQQKPGQPPKLLIK YASNLES GVPARFSGSGSGTDFTLNIHPVEEEDTATYYC QHSWEIPRT FGGGTKLEIK | 14 |
58F9G10 VH | EVQLQQSGPELVKTGASVKISCKASGYSFT GYYIH WVKQSHGKSLEWIG YISCYNGATSFNQKFKG KATFTVDTSSSTAYMQFNSLTSEDSAVYYCAR TELRGPWFAY WGQGTLVTVSA | 15 |
58F9G10 VL | QTVLTQSPAIMSASPGEKVTMTC SASSSVSYMN WYQQKSGTSPKRWIY DTSKLAS GVPARFSGSGSGTSYSLTISSMEAEDAATYYC QQWSNNPLT FGAGTKLELK | 16 |
2D3C12 VH | QVQLQQSGAELVRPGTSVKVSCKASGYAFI NYLIE WIKQRPGQGLEWIG MINPGSGGTNYNEKFKD KATLTADKSSSTAYMQLSSLTSDDSAVYFCAR NWDV WGQGTTLTVSS | 17 |
2D3C12 VL | DVVMTQSPLSLPVSLGDQASVSC RSSQSLVHSTGNTYLH WYLQKPGQSPKLLIY KVSNRFS GVPDRFSGSGSGTDFTLKISRVEAEDLGVYFC SQSTHVPWT FGGGTKLEIK | 18 |
14C2A11C6 VH | QVHLQQSGAELARPGASVKMSCKASGYTFT TYTMH WVKQRPGQGLEWIG YINPNSAYTNYNQKFKD KATLTADKSSSTAYMQLSSLTSEDSAVYYCAR RVLLLRVLDFFDY WGQGTTLTVSS | 19 |
14C2A11C6 VL | DVQITQSPSYLAASPGETITINC RASKSINKYLT WYQEKPGKTNKLLIY SGSTLQS GIPSRFSGSGSGSDFTLTISSLEPEDFAMYYC QQHNEYPLT FGTGTKLELK | 20 |
14F3H2 VH | EVQLQQSGPELVKPGASMKISCKASGYSFT GYTMN WVKQSHGKNLEWIG LINPYNGGIRYNQKFKG KATLTVDKSSSTAYMELLSLTSEDSAVYYCAR WGLRRAMDY WGQGTSVTVSS | 21 |
14F3H2 VL | DIVMTQSQKFMSTSVGDRVSVTC KASQNVGTNVA WYQQKPGQSPKALIY SASYRYS GVPDRFTGSGSGTDFTLTISNVQSEDLAEYFC QQYNSSPWT FGGGTKLEIK | 22 |
26E1D12 VH | EVQLQQSGPELVKPGASMKISCKASGYSFT GYTMN WVKQSHGKNLEWIG LINPYNGGTNYNQKFKG KATLAVDKSSSTAYMDLLSLTSEDSAVYYCSR WGLRRAMDY WGQGTSVTVSS | 23 |
26E1D12 VL | DIVMTQSQKFMSTSVGDRVSVTC KASQNVGSNVA WYQQKPGQSPKALIY SASYRYS GVPDRFTGSGSGTDFTLTISNVQSEDLAEYFC QQYNNSPWT FGGGTKLEIK | 24 |
29A7H11H4C12 VH | EVQLQQSGPELVKPGASMKISCKASGYSFT GYTMH WVKQSHGENLEWIG LINPYNGGTNYNQKFKG KATLTVDKSSSTAYMELLSLTSEDSAVYYCSR WGLRRAMDY WGQGTSVTVSS | 25 |
29A7H11H4C12 VL | DIVMTQSQKFMSTSIGDRVSVTC KASQNVGSNVA WYQQKPGQSPKALIY SASYRYS GVPDRFTGNGSGTDFTLTISNVQSEDLAEYFC QQYYNSPWT FGGGTKLEIK | 26 |
34D4A10 VH | QVQLQQSGAELVRPGTSVKVSCKASGYAFI SYLIE WIKQRPGQGLEWIG MINPGSGGTNYNEKFKD KATLTADKSSSTAYMQLSSLTSDDSAVYFCAR NWDV WGQGTTLTVSS | 27 |
34D4A10 VL | DVVMTQSPLSLPVSLGDQASVSC RSSQSLVHSTGNTYLH WYLQKPGQSPKLLIY KVSNRFS GVPDRFSGSGSGTDFTLKISRVEAEDLGVYFC SQSTHVPWT FGGGTKLEIK | 28 |
鼠類VH及VK基因係合成產生的,然後分別選殖至包含人類γ1恆定域及人類κ恆定域之載劑中。純化之嵌合抗體由轉染之CHO細胞產生。
自燒瓶中收穫穩定表現人類GPRC5D之CHO-K1細胞。將100 μl 1×10
6個細胞/ml之細胞與自300 nM到0.001 nM以3倍連續稀釋之初級嵌合抗體在冰上孵育30分鐘。用200 μl FACS緩衝液洗滌兩次後,將細胞與二抗在冰上孵育30分鐘。用200 μl FACS緩衝液洗滌細胞兩次並轉移至BD Falcon 5 ml管中並藉由FACS分析。研究結果表明,嵌合抗體可以以高EC50與人類GPRC5D結合(
圖 2)。
結果顯示於下表中。
實例 3. 嵌合 GPRC5D 抗體在 CHO-GPRC5D 細胞上內化之 EC50
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
58F9G10 | -521.8 | 414579 | 0.3596 | 0.8258 | 2.289 | 415101 |
40A5B2 | 1487 | 440269 | 0.3436 | 0.8189 | 2.206 | 438781 |
38A9E10A11 | 3016 | 386984 | 0.2453 | 1.037 | 1.759 | 383968 |
37B9C4 | 2078 | 405062 | 0.249 | 1.045 | 1.774 | 402985 |
34D3H1 | 3448 | 507844 | 0.5214 | 1.012 | 3.322 | 504396 |
29B2C10 | 4326 | 430443 | 0.342 | 1.041 | 2.198 | 426116 |
21C3C11B3 | 5774 | 403938 | 0.2293 | 1.286 | 1.696 | 398164 |
6G10D9 | 6886 | 458124 | 0.1012 | 1.343 | 1.262 | 451238 |
pHAb染料係pH值感測器染料,在pH > 7時具有非常低的螢光,並且隨著溶液之pH值變為酸性,螢光顯著增加。pHAb染料之激發最大值(Ex)在532nm處,發射最大值(Em)在560nm處。pHAb染料結合抗體可以用於監測受體介導之抗活體內化。當抗體-pHAb染料結合物與其在細胞膜上之受體結合時,其會表現出極小的螢光。然而,在發生受體介導之內化後,抗體-pHAb染料結合物會運輸至pH為酸性之內體及溶酶體囊泡,導致pHAb染料發出螢光。此螢光可以使用各種技術偵測,包括細胞成像、流動式細胞量測術及帶有適當濾光片之基於螢光板之讀取器。
用0.05%胰蛋白酶/EDTA (Gibco,25300-054)收穫穩定轉染之人類GPRC5D CHO細胞,並以10 K/90 μl/孔之密度接種至96孔黑色板(Thermo Scientific #165305)中。在用pHAb標記之抗體處理之前,將板孵育20-24小時。
對於內化,將pHAb結合之嵌合GPRC5D抗體以不同之濃度添加至細胞中,並在板式混合器上輕輕混合1-2分鐘,然後孵育過夜以允許內化(內化可以在幾個小時內偵測到)。在螢光板讀取器(Tecan Infinity M1000 Pro上在Ex/Em:532 nm/560 nm處)上讀取板。為了獲得更高之靈敏度,在讀板之前用PBS代替培養基。
用DAR標準化之結果如
圖 3所示。如
圖 3所示,測試之嵌合抗體具有較強內化活性。
實例 4. 抗體依賴性細胞毒性 (ADCC) 測試
ADCC Reporter Bioassay在ADCC MOA通路活化之早期使用另一種讀數:經由效應細胞中之NFAT (活化T細胞之核因子)通路之基因轉錄活化。另外,ADCC Reporter Bioassay使用工程改造之Jurkat細胞作為效應細胞,其穩定表現FcγRIIIa受體、V158 (高親和力)變體及驅動螢火蟲螢光素酶表現之NFAT反應元件。ADCC MOA中之抗體生物活性係經由NFAT通路活化產生之螢光素酶進行量化;效應細胞中之螢光素酶活性藉由發光讀數進行量化。信號高,偵測背景低。
在有或沒有ADCC Bioassay目標細胞(GPRC5D)之情況下,將連續稀釋之GPRC5D嵌合單株抗體與工程改造之Jurkat效應細胞(ADCC Bioassay效應細胞)在37℃下孵育6小時誘導。使用Bio-Glo™試劑對螢光素酶活性進行量化(在
圖 4中)。所有測試之抗體均表現出強大之誘導ADCC之能力。
實例 5. 小鼠 mAb 之人源化
利用鼠類抗體可變區基因產生人源化mAb。在此過程之第一步中,將mAb之VH及VL之胺基酸序列與人類Ig基因序列之可用數據庫進行比較,以找到總體上最匹配之人類種系Ig基因序列。
下面提供了人源化抗體之胺基酸序列。
人源化序列 A. 34D3H1 表 2A. 34D3H1–VH 之人源化
表 2B. CDR 序列
表 2C. 34D3H1–VL 之人源化
表 2D. CDR 序列
表 2E. 人源化抗體
B. 37B9C4 表 3A. 37B9C4–VH 之人源化
表 3B. CDR 序列
表 3C. 37B9C4–VL 之人源化
表 3D. CDR 序列
表 3E. 人源化抗體
C. 58F9G10 表 4A. 58F9G10–VH 之人源化
表 4B. CDR 序列
表 4C. 58F9G10–VL 之人源化
表 4D. CDR 序列
表 3E. 人源化抗體
D. 6G10D9 表 5A. 6G10D9–VH 之人源化
表 5B. CDR 序列
表 5C. 6G10D9–VL 之人源化
表 5D. CDR 序列
表 5E. 人源化抗體
實例 6. 人源化抗體之測試
名稱 | 序列 | SEQ ID NO: |
34D3H1 VH | EVHLVESGGDLVKPGGSLKLSCAASGFTFS SYGMS WVRQTPDKRLEWVA TISSGGSYTYYPDSVKG RFTISRDNAKNTLNLQMSSLKSEDTAMYYCAR QGGDAMDY WGQGTSVTVSS | 7 |
V1 (CDR移植) | EVQLVESGGGLVKPGGSLRLSCAASGFTFS SYGMS WVRQAPGKGLEWVS TISSGGSYTYYPDSVKG RFTISRDNAKNSLYLQMNSLRAEDTAVYYCAR QGGDAMDY WGQGTLVTVSS | 35 |
V2 (具有回復突變) | EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYGMSWVRQ T PGKGLEWV A TISSGGSYTYYPDSVKGRFTISRDNAKNSLYLQM S SLRAEDTAVYYCARQGGDAMDYWGQGTLVTVSS | 36 |
V3 (具有回復突變) | EV H LVESGGGLVKPGGSLRLSCAASGFTFSSYGMSWVRQ T PGK R LEWV A TISSGGSYTYYPDSVKGRFTISRDNAKNSL N LQM S SLRAEDTAVYYCARQGGDAMDYWGQGTLVTVSS | 37 |
CDR | 序列 | SEQ ID NO: |
CDR-H1 | SYGMS | 29 |
CDR-H2 | TISSGGSYTYYPDSVKG | 30 |
CDR-H3 | QGGDAMDY | 31 |
名稱 | 序列 | SEQ ID NO: |
34D3H1 VL | DIVLTQSPATLSVTPGDSVSLSC RASQSINNNLH WYQQKSHESPRLLIK YASQSIS GIPSRFSGSGSGTDFTLSINSVETEDFGMYFC QQSNSRLT FGAGTKLELK | 8 |
V1 (CDR移植) | DIQMTQSPSSLSASVGDRVTITC RASQSINNNLH WYQQKPGKAPKLLIY YASQSIS GVPSRFSGSGSGTDFTLTISSLQPEDFATYYC QQSNSRLT FGGGTKVEIK | 38 |
V2 (具有回復突變) | DIQMTQSPSSLSASVGDRVTITCRASQSINNNLHWYQQKPGKAPKLLIYYASQSISG I PSRFSGSGSGTDFTLTISS V QPEDFATY F CQQSNSRLTFGGGTKVEIK | 39 |
V3 (具有回復突變) | DIQ L TQSPSSLSASVGDRVTITCRASQSINNNLHWYQQKPGK S PKLLIYYASQSISG I PSRFSGSGSGTDFTLTISS V QPEDFATY F CQQSNSRLTFGGGTK L EIK | 40 |
V4 (具有回復突變) | DI VL TQSPSSLS V SVGDRVT L TCRASQSINNNLHWYQQKPGK S PKLLIYYASQSISG I PSRFSGSGSGTDFTLTISS V QPEDFATY F CQQSNSRLTFGGGTK L EIK | 41 |
CDR | 序列 | SEQ ID NO: |
CDR-L1 | RASQSINNNLH | 32 |
CDR-L2 | YASQSIS | 33 |
CDR-L3 | QQSNSRLT | 34 |
VL | VL v1 | VL v2 | VL v3 | VL v4 | |
VH | 34-XI | ||||
VH v1 | 34-H1L1 | 34-H1L2 | 34-H1L3 | 34-H1L4 | |
VH v2 | 34-H2L1 | 34-H2L2 | 34-H2L3 | 34-H2L4 | |
VH v3 | 34-H3L1 | 34-H3L2 | 34-H3L3 | 34-H3L4 |
名稱 | 序列 | SEQ ID NO: |
37B9C4 VH | EVNLEESGGGLVQPGGSMKLSCVASGFTFS DYWMN WVRQSPEKGLEWVA EIRLKSNNYATHYAESVKG RFTISRDDSKSSVYLQMNNLRAEDTGIYYCTR PLLWFRRYYAMDY WGQGTSVTVSS | 9 |
V1 (CDR移植) | EVQLVESGGGLVQPGGSLRLSCAASGFTFS DYWMN WVRQAPGKGLEWVA EIRLKSNNYATHYAESVKG RFTISRDNAKNSLYLQMNSLRAEDTAVYYCAR PLLWFRRYYAMDY WGQGTLVTVSS | 48 |
V2 (具有回復突變) | EVQLVESGGGLVQPGGSLRLSCAASGFTFSDYWMNWVRQ S PGKGLEWVAEIRLKSNNYATHYAESVKGRFTISRDNAK S SLYLQMNSLRAEDTAVYYC T RPLLWFRRYYAMDYWGQGTLVTVSS | 49 |
V3 (具有回復突變) | EVQLVESGGGLVQPGGSLRLSCAASGFTFSDYWMNWVRQ S PGKGLEWVAEIRLKSNNYATHYAESVKGRFTISRD DS K S S V YLQMNSLRAEDTAVYYC T RPLLWFRRYYAMDYWGQGTLVTVSS | 50 |
CDR | 序列 | SEQ ID NO: |
CDR-H1 | DYWMN | 42 |
CDR-H2 | EIRLKSNNYATHYAESVKG | 43 |
CDR-H3 | PLLWFRRYYAMDY | 44 |
名稱 | 序列 | SEQ ID NO: |
37B9C4 VL | DIQMTQTTSSLSASLGDRITISC SASQGISNYLN WYQQKPDGTVKLLIY YTSSLHS GVPSRFSGSGSGTDYSLTISNLEPADIATYYC QQYSKLPFT FGSGTKLEIK | 10 |
V1 (CDR移植) | DIQMTQSPSSLSASVGDRVTITC SASQGISNYLN WYQQKPGKAPKLLIY YTSSLHS GVPSRFSGSGSGTDFTLTISSLQPEDFATYYC QQYSKLPFT FGQGTKLEIK | 51 |
V2 (具有回復突變) | DIQMTQSPSSLSASVGDRVTITCSASQGISNYLNWYQQKPGK TV KLLIYYTSSLHSGVPSRFSGSGSGTD Y TLTISSLQPEDFATYYCQQYSKLPFTFGQGTKLEIK | 52 |
V3 (具有回復突變) | DIQMTQSPSSLSASVGDR I TITCSASQGISNYLNWYQQKPGK TV KLLIYYTSSLHSGVPSRFSGSGSGTD Y TLTISSLQPEDFATYYCQQYSKLPFTFG S GTKLEIK | 53 |
CDR | 序列 | SEQ ID NO: |
CDR-L1 | SASQGISNYLN | 45 |
CDR-L2 | YTSSLHS | 46 |
CDR-L3 | QQYSKLPFT | 47 |
VL | VL v1 | VL v2 | VL v3 | |
VH | 37B9C4-XI | |||
VH v1 | 37-H1L1 | 37-H1L2 | 37-H1L3 | |
VH v2 | 37-H2L1 | 37-H2L2 | 37-H2L3 | |
VH v3 | 37-H3L1 | 37-H3L2 | 37-H3L3 |
名稱 | 序列 | SEQ ID NO: |
58F9G10 VH | EVQLQQSGPELVKTGASVKISCKASGYSFT GYYIH WVKQSHGKSLEWIG YISCYNGATSFNQKFKG KATFTVDTSSSTAYMQFNSLTSEDSAVYYCAR TELRGPWFAY WGQGTLVTVSA | 15 |
V1 (CDR移植) | QVQLVQSGAEVKKPGASVKVSCKASGYSFT GYYIH WVRQAPGQGLEWMG YISSYNAATSFNQKFKG RVTMTRDTSTSTVYMELSSLRSEDTAVYYCAR TELRGPWFAY WGQGTLVTVSS | 61 |
V2 (具有回復突變) | QVQLVQSGAEVKKPGASVKVSCKASGYSFTGYYIHWVRQAPGQGLEW I GYIS S YN A ATSFNQKFKGRVT F T V DTSTSTVYMELSSLRSEDTAVYYCARTELRGPWFAYWGQGTLVTVSS | 62 |
V3 (具有回復突變) | QVQLVQSGAEVKKPGASVKVSCKASGYSFTGYYIHWV K QAPGQGLEW I GYIS S YN A ATSFNQKFKGRVT F T V DTSTSTVYME F SSLRSEDTAVYYCARTELRGPWFAYWGQGTLVTVSS | 63 |
V4 (具有回復突變) | QVQLVQSGAEVKKPGASVK I SCKASGYSFTGYYIHWV K QAPGQGLEW I GYIS S YN A ATSFNQKFKGR A T F T V DTSTST A YME F SSLRSED S AVYYCARTELRGPWFAYWGQGTLVTVSS | 64 |
CDR | 序列 | SEQ ID NO: |
CDR-H1 | GYYIH | 54 |
CDR-H2 | YISCYNGATSFNQKFKG YIS S YN A ATSFNQKFKG | 60 55 |
CDR-H3 | TELRGPWFAY | 56 |
名稱 | 序列 | SEQ ID NO: |
58F9G10 VL | QTVLTQSPAIMSASPGEKVTMTC SASSSVSYMN WYQQKSGTSPKRWIY DTSKLAS GVPARFSGSGSGTSYSLTISSMEAEDAATYYC QQWSNNPLT FGAGTKLELK | 16 |
V1 (CDR移植) | DIQMTQSPSSLSASVGDRVTITC SASSSVSYMN WYQQKPGKAPKLLIY DTSKLAS GVPSRFSGSGSGTDFTLTISSLQPEDFATYYC QQWSNNPLT FGQGTKLEIK | 65 |
V2 (具有回復突變) | D T QMTQSPSSLSASVGDRVTITCSASSSVSYMNWYQQKPGKAPK R LIYDTSKLASGVPSRFSGSGSGTD Y TLTISSLQPEDFATYYCQQWSNNPLTFGQGTKLEIK | 66 |
V3 (具有回復突變) | D T Q L TQSPSSLSASVGDRVT M TCSASSSVSYMNWYQQKPGKAPK R LIYDTSKLASGVPSRFSGSGSGTD Y TLTISS M QPEDFATYYCQQWSNNPLTFGQGTKLEIK | 67 |
CDR | 序列 | SEQ ID NO: |
CDR-L1 | SASSSVSYMN | 57 |
CDR-L2 | DTSKLAS | 58 |
CDR-L3 | QQWSNNPLT | 59 |
VL | VL v1 | VL v2 | VL V3 | |
VH | 58F9G10-XI | |||
VH v1 | 58-H1L1 | 58-H1L2 | 58-H1L3 | |
VH v2 | 58-H2L1 | 58-H2L2 | 1) 58-H2L3: | |
VH v3 | 58-H3L1 | 58-H3L2 | 58-H3L3 | |
VH v4 | 58-H4L1 | 58-H4L2 | 58-H4L3 |
名稱 | 序列 | SEQ ID NO: |
6G10D9 VH | QVQLQQSGAELARPGASVKMSCKASGYTFT TYTMH WVKQRPGQGLEWLG YINPSSGYTNYNQKFKD KATLTAGKSSSTAYMQLSSLTSEDSAVYYCAS LRSRGYFDY WGQGTTLTVSS | 1 |
V1 (CDR移植) | QVQLVQSGAEVKKPGASVKVSCKASGYTFT TYTMH WVRQAPGQGLEWMG YINPSSGYTNYNQKFKD RVTMTRDTSTSTVYMELSSLRSEDTAVYYCSR LRSRGYFDY WGQGTLVTVSS | 74 |
V2 (具有回復突變) | QVQLVQSGAEVKKPGASVKVSCKASGYTFTTYTMHWVRQAPGQGLEW L GYINPSSGYTNYNQKFKDRVTMT A DTSTSTVYMELSSLRSEDTAVYYC A RLRSRGYFDYWGQGTLVTVSS | 75 |
V3 (具有回復突變) | QVQLVQSGAEV A KPGASVKVSCKASGYTFTTYTMHWV K QAPGQGLEW L GYINPSSGYTNYNQKFKDRVTMT A DTSTSTVYMELSSLRSEDTAVYYC AS LRSRGYFDYWGQGTLVTVSS | 76 |
V4 (具有回復突變) | QVQLVQSGAEV A KPGASVK M SCKASGYTFTTYTMHWV K QAPGQGLEW L GYINPSSGYTNYNQKFKDRVT L T A DTSTSTVYMELSSLRSEDTAVYYC AS LRSRGYFDYWGQGTL L TVSS | 77 |
V5 (具有回復突變) | QVQL Q QSGAEV A KPGASVK M SCKASGYTFTTYTMHWV K Q R PGQGLEW L GYINPSSGYTNYNQKFKDRVT L T A D K STSTVYMELSSLRSEDTAVYYC AS LRSRGYFDYWGQGTL L TVSS | 78 |
V6 (具有回復突變) | QVQL Q QSGAEV A KPGASVK M SCKASGYTFTTYTMHWV K Q R PGQGLEW L GYINPSSGYTNYNQKFKDR A T L T AGK STSTVYMELSSLRSEDTAVYYC AS LRSRGYFDYWGQGTL L TVSS | 79 |
CDR | 序列 | SEQ ID NO: |
CDR-H1 | TYTMH | D01 |
CDR-H2 | YINPSSGYTNYNQKFKD | D02 |
CDR-H3 | LRSRGYFDY | D03 |
名稱 | 序列 | SEQ ID NO: |
6G10D9 VL | DIVMTQSQTFMSTSVGDRVRITC KASQNVGTAVV WYQQKTGQSPRLLIY SASNRYT GVPDRFTGSGSGTDFTLTISNMQSEDLADFFC QQYSSYPYT FGGGTKLEIK | 2 |
V1 (CDR移植) | DIQLTQSPSFLSASVGDRVTITC KASQNVGTAVV WYQQKPGKAPKLLIY SASNRYT GVPSRFSGSGSGTEFTLTISSLQPEDFATYYC QQYSSYPYT FGQGTKLEIK | 80 |
V2 (具有回復突變) | DIQLTQSPSFLS T SVGDRVTITCKASQNVGTAVVWYQQKPGK S PKLLIYSASNRYTGVPSRFSGSGSGTEFTLTISSLQPEDFAT F YCQQYSSYPYTFGQGTKLEIK | 81 |
V3 (具有回復突變) | DIQ M TQSPSFLS T SVGDRVTITCKASQNVGTAVVWYQQKPGK S PKLLIYSASNRYTGVPSRFSGSGSGTEFTLTISS M QPEDFAT FF CQQYSSYPYTFGQGTKLEIK | 82 |
V4 (具有回復突變) | DI VM TQSPSFLS T SVGDRVTITCKASQNVGTAVVWYQQKPGK S PKLLIYSASNRYTGVP D RFSGSGSGTEFTLTISS M QPEDFAT FF CQQYSSYPYTFG G GTKLEIK | 83 |
V1a (CDR 移植版本a) | EIVMTQSPATLSVSPGERATLSC KASQNVGTAVV WYQQKPGQAPRLLIY SASNRYT GIPARFSGSGSGTEFTLTISSLQSEDFAVYYC QQYSSYPYT FGQGTKLEIK | 84 |
V2a (具有回復突變) | EIVMTQSPATLS T SPGERATLSCKASQNVGTAVVWYQQKPGQ S PRLLIYSASNRYTG I P D RFSGSGSGTEFTLTISSLQSEDFAV FF CQQYSSYPYTFGQGTKLEIK | 85 |
V3a (具有回復突變) | EIVMTQSPATLS T SPGER V T I SCKASQNVGTAVVWYQQKPGQ S PRLLIYSASNRYTG I P D RF T GSGSGT D FTLTISS M QSEDFAV FF CQQYSSYPYTFG G GTKLEIK | 86 |
CDR | 序列 | SEQ ID NO: |
CDR-L1 | KASQNVGTAVV | 71 |
CDR-L2 | SASNRYT | 72 |
CDR-L3 | QQYSSYPYT | 73 |
VL | VL v1 | VL v2 | VL v3 | VL v4 | VL v1a | VL v2a | VL v3a | |
VH | 6G10D9-XI | |||||||
VH v1 | 6-H1L1 | 6-H1L2 | 6-H1L3 | |||||
VH v2 | 6-H2L1 | 6-H2L2 | 6-H2L3 | |||||
VH v3 | 6-H3L1 | 6-H3L2 | 6-H3L3 | |||||
VH v4 | 6-H4L1 | 6-H4L2 | 6-H4L3 | |||||
VH v5 | ||||||||
VH v6 |
此實例測試了一些人源化抗體與CHO-K1細胞上表現之GPRC5D結合之能力。
在所測試之源自6G10D9之人源化抗體中,6-H2L1及6-H3L3之表現優於其他抗體(
圖 5 ,表 6)。
表 6. 6G10D9 之人源化抗體結合 GPRC5D 之活性
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
6G10D9-XI | 6858 | 121725 | 0.2992 | 1.525 | 1.991 | 114867 |
6-H1L1 | 192.6 | ~ 6397 | ~ 3.102 | 1.198 | ~ 1264 | ~ 6205 |
6-H1L2 | 191.9 | 898894 | 5.224 | 1.19 | 167639 | 898702 |
6-H1L3 | 226.2 | 16478302 | 5.389 | 1.156 | 244790 | 16478076 |
6-H2L1 | 189.1 | 661560 | 5.039 | 1.232 | 109294 | 661371 |
6-H2L2 | 192.5 | 1271084 | 5.37 | 1.191 | 234364 | 1270892 |
6-H2L3 | 215.7 | 10592380 | 5.039 | 1.23 | 109279 | 10592164 |
6-H3L1 | -205.1 | 74293 | 2.352 | 0.8392 | 225.1 | 74498 |
6-H3L2 | 68.94 | 47463 | 2.244 | 0.9532 | 175.3 | 47394 |
6-H3L3 | 3994 | 119304 | 0.9553 | 1.13 | 9.022 | 115310 |
6-H4L1 | 61.5 | 50293 | 1.654 | 0.9277 | 45.05 | 50231 |
6-H4L2 | 9.56 | 39449 | 1.976 | 0.911 | 94.63 | 39440 |
6-H4L3 | 2344 | 126413 | 0.9049 | 1.052 | 8.033 | 124069 |
如
圖 6及
表 7所示,58F9G10之所有人源化版本似乎均具有良好效能。
表 7. 58F9G10 之人源化抗體結合 GPRC5D 之活性
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
58F9G10-XI | 6697 | 127349 | 0.2925 | 1.292 | 1.961 | 120652 |
58-H1L1 | 15047 | 107881 | 0.2519 | 1.342 | 1.786 | 92834 |
58-H1L2 | 5500 | 114432 | 0.2632 | 1.238 | 1.833 | 108932 |
58-H1L3 | 4227 | 105346 | 0.2308 | 1.14 | 1.701 | 101119 |
58-H2L1 | 3617 | 109672 | 0.3776 | 1.064 | 2.386 | 106055 |
58-H2L2 | 4837 | 107888 | 0.3448 | 1.091 | 2.212 | 103050 |
58-H2L3 | 1229 | 91713 | 0.2697 | 0.9633 | 1.861 | 90483 |
58-H3L1 | 9887 | 103663 | -0.1918 | 1.382 | 0.643 | 93776 |
58-H3L2 | 5981 | 105458 | 0.3742 | 1.195 | 2.367 | 99476 |
58-H3L3 | 4022 | 97718 | 0.3177 | 1.105 | 2.078 | 93695 |
58-H4L1 | 4993 | 104559 | 0.3655 | 1.179 | 2.32 | 99566 |
58-H4L2 | 4600 | 105051 | 0.3407 | 1.143 | 2.191 | 100451 |
58-H4L3 | 6249 | 102650 | 0.2874 | 1.27 | 1.938 | 96401 |
類似地,如
圖 7及
表 8所示,34D3H1之所有人源化版本似乎均具有良好效能,可與嵌合抗體相媲美。
表 8. 34D3H1 之人源化抗體結合 GPRC5D 之活性
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
34-XI | 16525 | 192054 | 0.4947 | 1.454 | 3.124 | 175530 |
34-H1L1 | 10921 | 196570 | 0.5908 | 1.314 | 3.898 | 185650 |
34-H1L2 | 13856 | 182030 | 0.5836 | 1.436 | 3.834 | 168174 |
34-H1L3 | 10620 | 185840 | 0.5732 | 1.167 | 3.743 | 175220 |
34-H1L4 | 10299 | 188925 | 0.5999 | 1.195 | 3.98 | 178626 |
34-H2L1 | 7854 | 187153 | 0.6188 | 1.173 | 4.157 | 179298 |
34-H2L2 | 8736 | 178873 | 0.6254 | 1.118 | 4.221 | 170137 |
34-H2L3 | 7063 | 185842 | 0.5832 | 1.11 | 3.83 | 178779 |
34-H2L4 | 4393 | 192405 | 0.6092 | 1.041 | 4.066 | 188012 |
34-H3L1 | 11139 | 178248 | 0.5207 | 1.228 | 3.317 | 167109 |
34-H3L2 | 9036 | 179809 | 0.6464 | 1.146 | 4.43 | 170773 |
34-H3L3 | 9118 | 192976 | 0.6508 | 1.1 | 4.475 | 183858 |
34-H3L4 | 12751 | 192533 | 0.5981 | 1.263 | 3.963 | 179782 |
此外,如
圖 8及
表 9所示,37B9C4之所有人源化版本似乎均具有良好效能,可與嵌合對應物相媲美。
表 9. 37B9C4 之人源化抗體結合 GPRC5D 之活性
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
37B9C4-XI | 11711 | 188479 | 0.2364 | 1.502 | 1.723 | 176769 |
37-H1L1 | 9596 | 178413 | 0.3574 | 1.613 | 2.277 | 168817 |
37-H1L2 | 8848 | 181865 | 0.3502 | 1.534 | 2.24 | 173017 |
37-H1L3 | 10445 | 173229 | 0.2332 | 1.528 | 1.711 | 162784 |
37-H2L1 | 9184 | 175072 | 0.351 | 1.583 | 2.244 | 165888 |
37-H2L2 | 9383 | 175293 | 0.3455 | 1.656 | 2.216 | 165910 |
37-H2L3 | 8049 | 168032 | 0.3334 | 1.564 | 2.155 | 159982 |
37-H3L1 | 6372 | 179261 | 0.2921 | 1.35 | 1.96 | 172889 |
37-H3L2 | 9193 | 179304 | 0.3153 | 1.428 | 2.067 | 170111 |
37-H3L3 | 7780 | 181053 | 0.2846 | 1.305 | 1.926 | 173273 |
基於以上數據,選擇人源化抗體6-H3L3、6-H4L3、58-H1L1、58-H3L1、34-H1L1及37-H1L1進行進一步確認測試。
實例 7. 選擇之人源化抗體之確認測試
此實例測試了一些人源化抗體(6-H3L3、6-H4L3、58-H1L1、58-H3L1、34-H1L1及37-H1L1)與CHO-K1及NCI-H929細胞上表現之人類GPRC5D蛋白結合之能力。
與CHO-K1之結合數據在
圖 9中繪製並總結在下
表 10中。
表 10 與 CHO-K1 細胞上之 GPRC5D 結合
表 11. 與 NCI-H929 細胞上之 GPRC5D 結合
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
6-XI | 523.9 | 104077 | 0.4723 | 1.095 | 2.967 | 103553 |
58-XI | 52.25 | 107000 | 0.5562 | 0.9481 | 3.599 | 106948 |
6-H3L3 | 172 | 134045 | 1.412 | 0.8045 | 25.82 | 133873 |
6-H4L3 | 109.4 | 145833 | 1.421 | 0.7392 | 26.34 | 145724 |
58-H1L1 | 275.4 | 99454 | 0.579 | 0.972 | 3.793 | 99178 |
58-H3L1 | 75.37 | 104402 | 0.612 | 0.9135 | 4.093 | 104326 |
34-XI | 688.6 | 117714 | 0.5776 | 1.054 | 3.781 | 117025 |
37-XI | 792.6 | 113379 | 0.3877 | 1.175 | 2.442 | 112586 |
34-H1L1 | 170.8 | 119038 | 0.781 | 0.8745 | 6.04 | 118867 |
37-H1L1 | 523.2 | 102496 | 0.511 | 1.042 | 3.244 | 101973 |
最小反應 | 最大反應 | LogEC50 | 希爾斜率 | EC50 | 跨度 | |
6-XI | 269.4 | 13785 | 0.05146 | 1.313 | 1.126 | 13515 |
58-XI | 261.4 | 14738 | 0.1596 | 1.269 | 1.444 | 14476 |
6-H3L3 | 129.8 | 21859 | 1.465 | 0.8063 | 29.18 | 21730 |
6-H4L3 | 80.05 | 28987 | 1.606 | 0.7142 | 40.33 | 28907 |
58-H1L1 | 281 | 13474 | 0.1648 | 1.319 | 1.462 | 13193 |
58-H3L1 | 275.5 | 13934 | 0.3 | 1.297 | 1.995 | 13658 |
34-XI | 181.1 | 18146 | 0.7587 | 0.9911 | 5.738 | 17965 |
34-H1L1 | 199.3 | 17911 | 0.8048 | 1.011 | 6.379 | 17712 |
37-XI | 337.6 | 13807 | -0.05621 | 1.41 | 0.8786 | 13470 |
37-H1L1 | 341.8 | 13534 | -0.1991 | 1.419 | 0.6323 | 13192 |
因此,此等數據證實此等所選擇之人源化抗體適合進一步之臨床開發。
實例 8. 人源化抗體之 ADCC
ADCC Reporter Bioassay在ADCC MOA通路活化之早期使用另一種讀數:經由效應細胞中之NFAT (活化T細胞之核因子)通路之基因轉錄活化。另外,ADCC Reporter Bioassay使用工程改造之Jurkat細胞作為效應細胞,其穩定表現FcγRIIIa受體、V158 (高親和力)變體及驅動螢火蟲螢光素酶表現之NFAT反應元件。ADCC MOA中之抗體生物活性係經由NFAT通路活化產生之螢光素酶進行量化;效應細胞中之螢光素酶活性藉由發光讀數進行量化。信號高,偵測背景低。
在有ADCC Bioassay目標細胞(表現GPRC5D)之情況下,將連續稀釋之GPRC5D人類抗體與工程改造之Jurkat效應細胞(ADCC Bioassay效應細胞)在37℃下孵育6小時誘導。使用Bio-Glo™試劑對螢光素酶活性進行量化。
結果示於
圖 11,其顯示了此等人源化抗體對過表現GPRC5D之細胞株及內源性MM (多發性骨髓瘤)細胞株誘導強烈之ADCC活性。
實例 9. 人源化抗體之內化
此實例測試了人源化抗體之內化誘導活性。該實例使用了一種新型親水性且明亮之pH感測器染料(pHAb染料),該染料在中性pH值下不發螢光,但隨著內化在酸性pH值下變得高度螢光。其可用於偵測內化過程。內源性表現人類GPRC5D之NCI-H929及MM.1R細胞作為目標細胞,加入pHAb染料標記之偵測抗體,以在活體外評價GPRC5D人類抗體之內化。
連續稀釋之GPRC5D人類抗體在37℃下孵育24小時。偵測螢光素酶活性。
圖 12中之結果表明,此等人源化抗體對過表現GPRC5D之細胞株及內源性MM細胞株均具有非常強之內化活性。
實例 10. GPRC5D ADC 之殺傷活性
此實例測試了兩種抗體-藥物結合物(ADC)對目標細胞之殺傷活性。此等ADC分別包括與有毒藥物單甲基澳瑞他汀E (MMAE)結合之37B9C4及58F9G10。
將表現人類GPRC5D之HEK293及NCI-H929工程細胞(HEK293/H_GPRC5D及NCI-H929/H_GPRC5D)、GPRC5D內源性表現之NCI-H929及MM.1R細胞以每孔3000~4000個細胞接種至96孔板中。用各種濃度之37B9C4-MMAE及58F9G10-MMAE處理細胞5天。細胞活力藉由以每孔3000~4000個細胞接種至96孔板中用CellTiter-Glo試劑量測。藉由Envison偵測螢光素酶活性。
圖 13及
表 12中之結果表明,此等人源化抗體具有很強的殺傷活性。
表 12 ADC 殺傷活性
實例 11. 活體內抗腫瘤活性
Hek-293/H_GPRC5D (IC50, nM) | MM.1R (IC50, nM) | NCI-H929 (IC50, nM) | NCI-H929/GPRC5D (IC50, nM) | |
37B9C4-MMAE | 0.025 | 0.14 | 0.23 | 0.11 |
58F9G10-MMAE | 0.026 | 0.07 | 0.99 | 0.14 |
此實例使用CDX動物模型測試抗體37B9C4 (H1L1)之抗腫瘤活性。
在此研究中,使用了6-8週雌性NCG小鼠(Jiangsu Jicui Yaokang Biotechnology Co., Ltd)。每隻小鼠在右腋窩(外側)皮下接種在0.1 ml含有基質膠之PBS (V:V=1:1)中之MM.1R腫瘤細胞(2×10
6),用於腫瘤發展。當腫瘤體積達到約60 mm
3時將動物隨機分組,然後開始治療以進行療效研究。在第0天、第7天、第14天藉由靜脈內(i.v.)投與1 mg/kg、3 mg/kg及10 mg/kg劑量之37B9C4。實驗在第19天終止,此時媒劑組之平均腫瘤體積超過2000 mm
3。PBS組、37B9C4 (1 mg/kg)組、37B9C4 (3 mg/kg)組及37B9C4 (10 mg/kg)組之平均腫瘤體積分別為2498.58 mm
3、1196.15 mm
3、0.00 mm
3(6/6 CR),及0.00 mm
3(6/6 CR)。使用卡尺每週在二維上量測腫瘤大小3次,並使用以下公式以mm
3表示體積:V = 0.5 a × b
2,其中a及b分別係腫瘤之長徑及短徑。數據點代表組(n = 6)平均值,誤差線代表平均數標準誤差(SEM)。
定期監測MM.1R荷瘤小鼠之體重作為毒性之間接量測。
圖 14A顯示了MM.1R荷瘤小鼠在投與37B9C4後之腫瘤生長曲線。該抗體劑量依賴性地抑制該腫瘤模型中之腫瘤生長,並且在3 mg/kg或以上實現完全之腫瘤抑制。
MM.1R荷瘤小鼠在給藥後之詳細體重變化及相對體重變化示於
圖 14B。給藥期間,各組小鼠體重均無明顯減輕,給藥組小鼠耐受性良好,證明了治療之安全性。
* * *
本揭示之範疇不受所描述之具體實施例之限制,該等具體實施例旨在作為本揭示之各個態樣之單一說明,並且任何在功能上等效之組合物或方法均在本揭示之範疇內。對熟習此項技術者顯而易見的係,在不脫離本揭示之精神或範疇之情況下,可以對本揭示的方法及組合物進行各種修改及變化。因此,本揭示旨在覆蓋本揭示之修改及變化,只要此等修改及變化落入所附申請專利範圍及其等效物之範疇內。
本說明書中提及之所有出版物及專利申請均以引用方式併入本文,其程度就如同每個單獨之出版物或專利申請被特別地及單獨地指示為以引用方式併入一樣。
圖 1顯示了自雜交瘤上清液中收集之鼠類抗體與在CHO-K1細胞上表現之GPRC5D的結合。
圖 2顯示了嵌合抗體與CHO-K1細胞上表現之GPRC5D的結合。
圖 3顯示抗體結合誘導內吞作用。
圖 4顯示抗體具有ADCC能力。
圖 5 至圖 8分別顯示了源自6G10D9、58F9G10、34D3H1及37B9C4之人源化抗體之親和力測試結果。
圖 9證實了所選擇之人源化抗體與CHO-K1細胞上表現之GPRC5D的結合。
圖 10證實了所選擇之人源化抗體與NCI-H929細胞上表現之GPRC5D的結合。
圖 11顯示了所測試之人源化抗體之ADCC功效。
圖 12顯示了所測試之人源化抗體之內化誘導活性。
圖 13顯示了所測試之抗體-藥物結合物之細胞殺傷活性。
圖 14顯示了所測試之抗體之腫瘤抑制活性。
<![CDATA[<110> 中國大陸商上海禮新醫藥研發有限公司(LANOVA MEDICINES DEVELOPMENT CO., LTD.)]]> <![CDATA[<120> 抗GPRC5D單株抗體及其用途]]> <![CDATA[<130> 70LG-325887-TW]]> <![CDATA[<160> 86 ]]> <![CDATA[<170> PatentIn version 3.5]]> <![CDATA[<210> 1]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 1]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Leu Ala Arg Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Leu 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Lys Ala Thr Leu Thr Ala Gly Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Ser Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Thr Leu Thr Val Ser Ser 115 <![CDATA[<210> 2]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 2]]> Asp Ile Val Met Thr Gln Ser Gln Thr Phe Met Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Arg Ile Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Thr Gly Gln Ser Pro Arg Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Val Pro Asp Arg Phe Thr Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Asn Met Gln Ser 65 70 75 80 Glu Asp Leu Ala Asp Phe Phe Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 3]]> <![CDATA[<211> 113]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 3]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Leu Val Arg Pro Gly Thr 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ala Phe Ile Asn Tyr 20 25 30 Leu Ile Glu Trp Ile Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Met Ile Asn Pro Gly Ser Gly Gly Thr Asn Tyr Asn Glu Lys Phe 50 55 60 Lys Asp Lys Ala Thr Leu Thr Ala Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Leu Ser Ser Leu Thr Ser Asp Asp Ser Ala Val Tyr Phe Cys 85 90 95 Ala Arg Asn Trp Asp Val Trp Gly Gln Gly Thr Thr Leu Thr Val Ser 100 105 110 Ser <![CDATA[<210> 4]]> <![CDATA[<211]]>> 112]]> <br/><![CDATA[<212> PRT]]> <br/><![CDATA[<213> 人工序列]]> <br/> <br/><![CDATA[<220>]]> <br/><![CDATA[<223> 合成]]> <br/> <br/><![CDATA[<400> 4]]> <br/> <br/><![CDATA[Asp Val Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Ser Leu Gly 1 5 10 15 Asp Gln Ala Ser Val Ser Cys Arg Ser Ser Gln Ser Leu Val His Ser 20 25 30 Thr Gly Asn Thr Tyr Leu His Trp Tyr Leu Gln Lys Pro Gly Gln Ser 35 40 45 Pro Lys Leu Leu Ile Tyr Lys Val Ser Asn Arg Phe Ser Gly Val Pro 50 55 60 Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 65 70 75 80 Ser Arg Val Glu Ala Glu Asp Leu Gly Val Tyr Phe Cys Ser Gln Ser 85 90 95 Thr His Val Pro Trp Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 110 <![CDATA[<210> 5]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 5]]> Glu Val Gln Leu Gln Gln Ser Gly Pro Glu Leu Val Lys Pro Gly Ala 1 5 10 15 Ser Met Lys Leu Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Thr Met His Trp Val Lys Gln Ser His Gly Glu Asn Leu Glu Trp Ile 35 40 45 Gly Leu Ile Asn Pro Tyr Asn Gly Gly Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Glu Leu Leu Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ser Arg Trp Gly Leu Arg Arg Ala Met Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Ser Val Thr Val Ser Ser 115 <![CDATA[<210> 6]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 6]]> Asp Ile Val Met Thr Gln Ser Gln Lys Phe Met Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Ser Val Thr Cys Lys Ala Ser Gln Asn Val Gly Ser Asn 20 25 30 Val Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Lys Ala Leu Ile 35 40 45 Tyr Ser Ala Ser Tyr Arg Tyr Ser Gly Val Pro Asp Arg Phe Thr Gly 50 55 60 Asn Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Asn Val Gln Ser 65 70 75 80 Glu Asp Leu Ala Glu Tyr Phe Cys Gln Gln Tyr Tyr Asn Ser Pro Trp 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 7]]> <![CDATA[<211> 117]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 7]]> Glu Val His Leu Val Glu Ser Gly Gly Asp Leu Val Lys Pro Gly Gly 1 5 10 15 Ser Leu Lys Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 20 25 30 Gly Met Ser Trp Val Arg Gln Thr Pro Asp Lys Arg Leu Glu Trp Val 35 40 45 Ala Thr Ile Ser Ser Gly Gly Ser Tyr Thr Tyr Tyr Pro Asp Ser Val 50 55 60 Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Thr Leu Asn 65 70 75 80 Leu Gln Met Ser Ser Leu Lys Ser Glu Asp Thr Ala Met Tyr Tyr Cys 85 90 95 Ala Arg Gln Gly Gly Asp Ala Met Asp Tyr Trp Gly Gln Gly Thr Ser 100 105 110 Val Thr Val Ser Ser 115 <![CDATA[<210> 8]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 8]]> Asp Ile Val Leu Thr Gln Ser Pro Ala Thr Leu Ser Val Thr Pro Gly 1 5 10 15 Asp Ser Val Ser Leu Ser Cys Arg Ala Ser Gln Ser Ile Asn Asn Asn 20 25 30 Leu His Trp Tyr Gln Gln Lys Ser His Glu Ser Pro Arg Leu Leu Ile 35 40 45 Lys Tyr Ala Ser Gln Ser Ile Ser Gly Ile Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Ser Ile Asn Ser Val Glu Thr 65 70 75 80 Glu Asp Phe Gly Met Tyr Phe Cys Gln Gln Ser Asn Ser Arg Leu Thr 85 90 95 Phe Gly Ala Gly Thr Lys Leu Glu Leu Lys 100 105 <![CDATA[<210> 9]]> <![CDATA[<211> 124]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 9]]> Glu Val Asn Leu Glu Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 1 5 10 15 Ser Met Lys Leu Ser Cys Val Ala Ser Gly Phe Thr Phe Ser Asp Tyr 20 25 30 Trp Met Asn Trp Val Arg Gln Ser Pro Glu Lys Gly Leu Glu Trp Val 35 40 45 Ala Glu Ile Arg Leu Lys Ser Asn Asn Tyr Ala Thr His Tyr Ala Glu 50 55 60 Ser Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Ser Ser 65 70 75 80 Val Tyr Leu Gln Met Asn Asn Leu Arg Ala Glu Asp Thr Gly Ile Tyr 85 90 95 Tyr Cys Thr Arg Pro Leu Leu Trp Phe Arg Arg Tyr Tyr Ala Met Asp 100 105 110 Tyr Trp Gly Gln Gly Thr Ser Val Thr Val Ser Ser 115 120 <![CDATA[<210> 10]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 10]]> Asp Ile Gln Met Thr Gln Thr Thr Ser Ser Leu Ser Ala Ser Leu Gly 1 5 10 15 Asp Arg Ile Thr Ile Ser Cys Ser Ala Ser Gln Gly Ile Ser Asn Tyr 20 25 30 Leu Asn Trp Tyr Gln Gln Lys Pro Asp Gly Thr Val Lys Leu Leu Ile 35 40 45 Tyr Tyr Thr Ser Ser Leu His Ser Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Tyr Ser Leu Thr Ile Ser Asn Leu Glu Pro 65 70 75 80 Ala Asp Ile Ala Thr Tyr Tyr Cys Gln Gln Tyr Ser Lys Leu Pro Phe 85 90 95 Thr Phe Gly Ser Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 11]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 11]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Leu Ala Arg Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Lys Ala Thr Leu Thr Ala Gly Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Ser Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Arg Gly Thr 100 105 110 Thr Leu Thr Val Ser Ser 115 <![CDATA[<210> 12]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 12]]> Asp Ile Val Met Thr Gln Ser Gln Lys Phe Leu Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Ser Ile Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Lys Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Val Pro Asp Arg Phe Thr Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Asn Met Gln Ser 65 70 75 80 Glu Asp Leu Ala Gly Tyr Phe Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 13]]> <![CDATA[<211> 122]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 1]]>3 Glu Val Gln Leu Gln Gln Ser Gly Pro Glu Leu Val Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Arg Asn 20 25 30 Ile Met His Trp Val Lys Gln Lys Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Asn Pro Tyr Asn Ala Gly Ser Lys Tyr Asn Glu Lys Phe 50 55 60 Lys Gly Lys Ala Thr Leu Thr Ser Asp Ile Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Glu Glu Val Tyr Tyr Arg Tyr Gly Ala Trp Phe Ala Tyr Trp 100 105 110 Gly His Gly Thr Leu Val Thr Val Ser Ala 115 120 <![CDATA[<210> 14]]> <![CDATA[<211> 111]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 14]]> Asp Ile Val Leu Thr Gln Ser Pro Ala Ser Leu Ala Val Ser Leu Gly 1 5 10 15 Gln Arg Ala Thr Ile Ser Cys Arg Ala Ser Gln Ser Val Ser Thr Ser 20 25 30 Ser Tyr Ser Tyr Met His Trp Tyr Gln Gln Lys Pro Gly Gln Pro Pro 35 40 45 Lys Leu Leu Ile Lys Tyr Ala Ser Asn Leu Glu Ser Gly Val Pro Ala 50 55 60 Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Asn Ile His 65 70 75 80 Pro Val Glu Glu Glu Asp Thr Ala Thr Tyr Tyr Cys Gln His Ser Trp 85 90 95 Glu Ile Pro Arg Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 110 <![CDATA[<210> 15]]> <![CDATA[<211> 119]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 15]]> Glu Val Gln Leu Gln Gln Ser Gly Pro Glu Leu Val Lys Thr Gly Ala 1 5 10 15 Ser Val Lys Ile Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Tyr Ile His Trp Val Lys Gln Ser His Gly Lys Ser Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Ser Cys Tyr Asn Gly Ala Thr Ser Phe Asn Gln Lys Phe 50 55 60 Lys Gly Lys Ala Thr Phe Thr Val Asp Thr Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Phe Asn Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Thr Glu Leu Arg Gly Pro Trp Phe Ala Tyr Trp Gly Gln Gly 100 105 110 Thr Leu Val Thr Val Ser Ala 115 <![CDATA[<210> 16]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 16]]> Gln Thr Val Leu Thr Gln Ser Pro Ala Ile Met Ser Ala Ser Pro Gly 1 5 10 15 Glu Lys Val Thr Met Thr Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 20 25 30 Asn Trp Tyr Gln Gln Lys Ser Gly Thr Ser Pro Lys Arg Trp Ile Tyr 35 40 45 Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ala Arg Phe Ser Gly Ser 50 55 60 Gly Ser Gly Thr Ser Tyr Ser Leu Thr Ile Ser Ser Met Glu Ala Glu 65 70 75 80 Asp Ala Ala Thr Tyr Tyr Cys Gln Gln Trp Ser Asn Asn Pro Leu Thr 85 90 95 Phe Gly Ala Gly Thr Lys Leu Glu Leu Lys 100 105 <![CDATA[<210> 17]]> <![CDATA[<211> 113]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 17]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Leu Val Arg Pro Gly Thr 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ala Phe Ile Asn Tyr 20 25 30 Leu Ile Glu Trp Ile Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Met Ile Asn Pro Gly Ser Gly Gly Thr Asn Tyr Asn Glu Lys Phe 50 55 60 Lys Asp Lys Ala Thr Leu Thr Ala Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Leu Ser Ser Leu Thr Ser Asp Asp Ser Ala Val Tyr Phe Cys 85 90 95 Ala Arg Asn Trp Asp Val Trp Gly Gln Gly Thr Thr Leu Thr Val Ser 100 105 110 Ser <![CDATA[<210> 18]]> <![CDATA[<211> 112]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 18]]> Asp Val Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Ser Leu Gly 1 5 10 15 Asp Gln Ala Ser Val Ser Cys Arg Ser Ser Gln Ser Leu Val His Ser 20 25 30 Thr Gly Asn Thr Tyr Leu His Trp Tyr Leu Gln Lys Pro Gly Gln Ser 35 40 45 Pro Lys Leu Leu Ile Tyr Lys Val Ser Asn Arg Phe Ser Gly Val Pro 50 55 60 Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 65 70 75 80 Ser Arg Val Glu Ala Glu Asp Leu Gly Val Tyr Phe Cys Ser Gln Ser 85 90 95 Thr His Val Pro Trp Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 110 <![CDATA[<210> 19]]> <![CDATA[<211> 122]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 19]]> Gln Val His Leu Gln Gln Ser Gly Ala Glu Leu Ala Arg Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Asn Pro Asn Ser Ala Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Lys Ala Thr Leu Thr Ala Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Arg Val Leu Leu Leu Arg Val Leu Asp Phe Phe Asp Tyr Trp 100 105 110 Gly Gln Gly Thr Thr Leu Thr Val Ser Ser 115 120 <![CDATA[<210> 20]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 20]]> Asp Val Gln Ile Thr Gln Ser Pro Ser Tyr Leu Ala Ala Ser Pro Gly 1 5 10 15 Glu Thr Ile Thr Ile Asn Cys Arg Ala Ser Lys Ser Ile Asn Lys Tyr 20 25 30 Leu Thr Trp Tyr Gln Glu Lys Pro Gly Lys Thr Asn Lys Leu Leu Ile 35 40 45 Tyr Ser Gly Ser Thr Leu Gln Ser Gly Ile Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Ser Asp Phe Thr Leu Thr Ile Ser Ser Leu Glu Pro 65 70 75 80 Glu Asp Phe Ala Met Tyr Tyr Cys Gln Gln His Asn Glu Tyr Pro Leu 85 90 95 Thr Phe Gly Thr Gly Thr Lys Leu Glu Leu Lys 100 105 <![CDATA[<210> 21]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 21]]> Glu Val Gln Leu Gln Gln Ser Gly Pro Glu Leu Val Lys Pro Gly Ala 1 5 10 15 Ser Met Lys Ile Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Thr Met Asn Trp Val Lys Gln Ser His Gly Lys Asn Leu Glu Trp Ile 35 40 45 Gly Leu Ile Asn Pro Tyr Asn Gly Gly Ile Arg Tyr Asn Gln Lys Phe 50 55 60 Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Glu Leu Leu Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Trp Gly Leu Arg Arg Ala Met Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Ser Val Thr Val Ser Ser 115 <![CDATA[<210> 22]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 22]]> Asp Ile Val Met Thr Gln Ser Gln Lys Phe Met Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Ser Val Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Asn 20 25 30 Val Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Lys Ala Leu Ile 35 40 45 Tyr Ser Ala Ser Tyr Arg Tyr Ser Gly Val Pro Asp Arg Phe Thr Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Asn Val Gln Ser 65 70 75 80 Glu Asp Leu Ala Glu Tyr Phe Cys Gln Gln Tyr Asn Ser Ser Pro Trp 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 23]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 23]]> Glu Val Gln Leu Gln Gln Ser Gly Pro Glu Leu Val Lys Pro Gly Ala 1 5 10 15 Ser Met Lys Ile Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Thr Met Asn Trp Val Lys Gln Ser His Gly Lys Asn Leu Glu Trp Ile 35 40 45 Gly Leu Ile Asn Pro Tyr Asn Gly Gly Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Gly Lys Ala Thr Leu Ala Val Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Asp Leu Leu Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ser Arg Trp Gly Leu Arg Arg Ala Met Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Ser Val Thr Val Ser Ser 115 <![CDATA[<210> 24]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 24]]> Asp Ile Val Met Thr Gln Ser Gln Lys Phe Met Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Ser Val Thr Cys Lys Ala Ser Gln Asn Val Gly Ser Asn 20 25 30 Val Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Lys Ala Leu Ile 35 40 45 Tyr Ser Ala Ser Tyr Arg Tyr Ser Gly Val Pro Asp Arg Phe Thr Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Asn Val Gln Ser 65 70 75 80 Glu Asp Leu Ala Glu Tyr Phe Cys Gln Gln Tyr Asn Asn Ser Pro Trp 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 25]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 25]]> Glu Val Gln Leu Gln Gln Ser Gly Pro Glu Leu Val Lys Pro Gly Ala 1 5 10 15 Ser Met Lys Ile Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Thr Met His Trp Val Lys Gln Ser His Gly Glu Asn Leu Glu Trp Ile 35 40 45 Gly Leu Ile Asn Pro Tyr Asn Gly Gly Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Gly Lys Ala Thr Leu Thr Val Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Glu Leu Leu Ser Leu Thr Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ser Arg Trp Gly Leu Arg Arg Ala Met Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Ser Val Thr Val Ser Ser 115 <![CDATA[<210> 26]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 26]]> Asp Ile Val Met Thr Gln Ser Gln Lys Phe Met Ser Thr Ser Ile Gly 1 5 10 15 Asp Arg Val Ser Val Thr Cys Lys Ala Ser Gln Asn Val Gly Ser Asn 20 25 30 Val Ala Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Lys Ala Leu Ile 35 40 45 Tyr Ser Ala Ser Tyr Arg Tyr Ser Gly Val Pro Asp Arg Phe Thr Gly 50 55 60 Asn Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Asn Val Gln Ser 65 70 75 80 Glu Asp Leu Ala Glu Tyr Phe Cys Gln Gln Tyr Tyr Asn Ser Pro Trp 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 27]]> <![CDATA[<211> 113]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 27]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Leu Val Arg Pro Gly Thr 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ala Phe Ile Ser Tyr 20 25 30 Leu Ile Glu Trp Ile Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Met Ile Asn Pro Gly Ser Gly Gly Thr Asn Tyr Asn Glu Lys Phe 50 55 60 Lys Asp Lys Ala Thr Leu Thr Ala Asp Lys Ser Ser Ser Thr Ala Tyr 65 70 75 80 Met Gln Leu Ser Ser Leu Thr Ser Asp Asp Ser Ala Val Tyr Phe Cys 85 90 95 Ala Arg Asn Trp Asp Val Trp Gly Gln Gly Thr Thr Leu Thr Val Ser 100 105 110 Ser <![CDATA[<210> 28]]> <![CDATA[<211> 112]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 28]]> Asp Val Val Met Thr Gln Ser Pro Leu Ser Leu Pro Val Ser Leu Gly 1 5 10 15 Asp Gln Ala Ser Val Ser Cys Arg Ser Ser Gln Ser Leu Val His Ser 20 25 30 Thr Gly Asn Thr Tyr Leu His Trp Tyr Leu Gln Lys Pro Gly Gln Ser 35 40 45 Pro Lys Leu Leu Ile Tyr Lys Val Ser Asn Arg Phe Ser Gly Val Pro 50 55 60 Asp Arg Phe Ser Gly Ser Gly Ser Gly Thr Asp Phe Thr Leu Lys Ile 65 70 75 80 Ser Arg Val Glu Ala Glu Asp Leu Gly Val Tyr Phe Cys Ser Gln Ser 85 90 95 Thr His Val Pro Trp Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 110 <![CDATA[<210> 29]]> <![CDATA[<211> 5]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 29]]> Ser Tyr Gly Met Ser 1 5 <![CDATA[<210> 30]]> <![CDATA[<211> 17]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 30]]> Thr Ile Ser Ser Gly Gly Ser Tyr Thr Tyr Tyr Pro Asp Ser Val Lys 1 5 10 15 Gly <![CDATA[<210> 31]]> <![CDATA[<211> 8]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 31]]> Gln Gly Gly Asp Ala Met Asp Tyr 1 5 <![CDATA[<210> 32]]> <![CDATA[<211> 11]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 32]]> Arg Ala Ser Gln Ser Ile Asn Asn Asn Leu His 1 5 10 <![CDATA[<210> 33]]> <![CDATA[<211> 7]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 33]]> Tyr Ala Ser Gln Ser Ile Ser 1 5 <![CDATA[<210> 34]]> <![CDATA[<211> 8]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 34]]> Gln Gln Ser Asn Ser Arg Leu Thr 1 5 <![CDATA[<210> ]]> 35 <![CDATA[<211> 117]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 35]]> Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 1 5 10 15 Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 20 25 30 Gly Met Ser Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 35 40 45 Ser Thr Ile Ser Ser Gly Gly Ser Tyr Thr Tyr Tyr Pro Asp Ser Val 50 55 60 Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Tyr 65 70 75 80 Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Gln Gly Gly Asp Ala Met Asp Tyr Trp Gly Gln Gly Thr Leu 100 105 110 Val Thr Val Ser Ser 115 <![CDATA[<210> 36]]> <![CDATA[<211> 117]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> ]]> 合成 <![CDATA[<400> 36]]> Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 1 5 10 15 Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 20 25 30 Gly Met Ser Trp Val Arg Gln Thr Pro Gly Lys Gly Leu Glu Trp Val 35 40 45 Ala Thr Ile Ser Ser Gly Gly Ser Tyr Thr Tyr Tyr Pro Asp Ser Val 50 55 60 Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Tyr 65 70 75 80 Leu Gln Met Ser Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Gln Gly Gly Asp Ala Met Asp Tyr Trp Gly Gln Gly Thr Leu 100 105 110 Val Thr Val Ser Ser 115 <![CDATA[<210> 37]]> <![CDATA[<211> 117]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 37]]> Glu Val His Leu Val Glu Ser Gly Gly Gly Leu Val Lys Pro Gly Gly 1 5 10 15 Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Ser Tyr 20 25 30 Gly Met Ser Trp Val Arg Gln Thr Pro Gly Lys Arg Leu Glu Trp Val 35 40 45 Ala Thr Ile Ser Ser Gly Gly Ser Tyr Thr Tyr Tyr Pro Asp Ser Val 50 55 60 Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser Leu Asn 65 70 75 80 Leu Gln Met Ser Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Gln Gly Gly Asp Ala Met Asp Tyr Trp Gly Gln Gly Thr Leu 100 105 110 Val Thr Val Ser Ser 115 <![CDATA[<210> 38]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 38]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Ser Ile Asn Asn Asn 20 25 30 Leu His Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 35 40 45 Tyr Tyr Ala Ser Gln Ser Ile Ser Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Ser Asn Ser Arg Leu Thr 85 90 95 Phe Gly Gly Gly Thr Lys Val Glu Ile Lys 100 105 <![CDATA[<210> 39]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 39]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Ser Ile Asn Asn Asn 20 25 30 Leu His Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 35 40 45 Tyr Tyr Ala Ser Gln Ser Ile Ser Gly Ile Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Val Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Phe Cys Gln Gln Ser Asn Ser Arg Leu Thr 85 90 95 Phe Gly Gly Gly Thr Lys Val Glu Ile Lys 100 105 <![CDATA[<210> 40]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 40]]> Asp Ile Gln Leu Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Arg Ala Ser Gln Ser Ile Asn Asn Asn 20 25 30 Leu His Trp Tyr Gln Gln Lys Pro Gly Lys Ser Pro Lys Leu Leu Ile 35 40 45 Tyr Tyr Ala Ser Gln Ser Ile Ser Gly Ile Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Val Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Phe Cys Gln Gln Ser Asn Ser Arg Leu Thr 85 90 95 Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 41]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 41]]> Asp Ile Val Leu Thr Gln Ser Pro Ser Ser Leu Ser Val Ser Val Gly 1 5 10 15 Asp Arg Val Thr Leu Thr Cys Arg Ala Ser Gln Ser Ile Asn Asn Asn 20 25 30 Leu His Trp Tyr Gln Gln Lys Pro Gly Lys Ser Pro Lys Leu Leu Ile 35 40 45 Tyr Tyr Ala Ser Gln Ser Ile Ser Gly Ile Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Val Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Phe Cys Gln Gln Ser Asn Ser Arg Leu Thr 85 90 95 Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 42]]> <![CDATA[<211> 5]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 42]]> Asp Tyr Trp Met Asn 1 5 <![CDATA[<210> 43]]> <![CDATA[<211> 19]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 43]]> Glu Ile Arg Leu Lys Ser Asn Asn Tyr Ala Thr His Tyr Ala Glu Ser 1 5 10 15 Val Lys Gly <![CDATA[<210> 44]]> <![CDATA[<211> 13]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 44]]> Pro Leu Leu Trp Phe Arg Arg Tyr Tyr Ala Met Asp Tyr 1 5 10 <![CDATA[<210> 45]]> <![CDATA[<211> 11]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 45]]> Ser Ala Ser Gln Gly Ile Ser Asn Tyr Leu Asn 1 5 10 <![CDATA[<210> 46]]> <![CDATA[<211> 7]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 46]]> Tyr Thr Ser Ser Leu His Ser 1 5 <![CDATA[<210> 47]]> <![CDATA[<211> 9]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 47]]> Gln Gln Tyr Ser Lys Leu Pro Phe Thr 1 5 <![CDATA[<210> 48]]> <![CDATA[<211> 124]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 48]]> Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 1 5 10 15 Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 20 25 30 Trp Met Asn Trp Val Arg Gln Ala Pro Gly Lys Gly Leu Glu Trp Val 35 40 45 Ala Glu Ile Arg Leu Lys Ser Asn Asn Tyr Ala Thr His Tyr Ala Glu 50 55 60 Ser Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Asn Ser 65 70 75 80 Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr 85 90 95 Tyr Cys Ala Arg Pro Leu Leu Trp Phe Arg Arg Tyr Tyr Ala Met Asp 100 105 110 Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser 115 120 <![CDATA[<210> 49]]> <![CDATA[<211> 124]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 49]]> Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 1 5 10 15 Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 20 25 30 Trp Met Asn Trp Val Arg Gln Ser Pro Gly Lys Gly Leu Glu Trp Val 35 40 45 Ala Glu Ile Arg Leu Lys Ser Asn Asn Tyr Ala Thr His Tyr Ala Glu 50 55 60 Ser Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asn Ala Lys Ser Ser 65 70 75 80 Leu Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr 85 90 95 Tyr Cys Thr Arg Pro Leu Leu Trp Phe Arg Arg Tyr Tyr Ala Met Asp 100 105 110 Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser 115 120 <![CDATA[<210> 50]]> <![CDATA[<211> 124]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 50]]> Glu Val Gln Leu Val Glu Ser Gly Gly Gly Leu Val Gln Pro Gly Gly 1 5 10 15 Ser Leu Arg Leu Ser Cys Ala Ala Ser Gly Phe Thr Phe Ser Asp Tyr 20 25 30 Trp Met Asn Trp Val Arg Gln Ser Pro Gly Lys Gly Leu Glu Trp Val 35 40 45 Ala Glu Ile Arg Leu Lys Ser Asn Asn Tyr Ala Thr His Tyr Ala Glu 50 55 60 Ser Val Lys Gly Arg Phe Thr Ile Ser Arg Asp Asp Ser Lys Ser Ser 65 70 75 80 Val Tyr Leu Gln Met Asn Ser Leu Arg Ala Glu Asp Thr Ala Val Tyr 85 90 95 Tyr Cys Thr Arg Pro Leu Leu Trp Phe Arg Arg Tyr Tyr Ala Met Asp 100 105 110 Tyr Trp Gly Gln Gly Thr Leu Val Thr Val Ser Ser 115 120 <![CDATA[<210> 51]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 51]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Gln Gly Ile Ser Asn Tyr 20 25 30 Leu Asn Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 35 40 45 Tyr Tyr Thr Ser Ser Leu His Ser Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Tyr Ser Lys Leu Pro Phe 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 52]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 52]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Gln Gly Ile Ser Asn Tyr 20 25 30 Leu Asn Trp Tyr Gln Gln Lys Pro Gly Lys Thr Val Lys Leu Leu Ile 35 40 45 Tyr Tyr Thr Ser Ser Leu His Ser Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Tyr Ser Lys Leu Pro Phe 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 53]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 53]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Ile Thr Ile Thr Cys Ser Ala Ser Gln Gly Ile Ser Asn Tyr 20 25 30 Leu Asn Trp Tyr Gln Gln Lys Pro Gly Lys Thr Val Lys Leu Leu Ile 35 40 45 Tyr Tyr Thr Ser Ser Leu His Ser Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Tyr Ser Lys Leu Pro Phe 85 90 95 Thr Phe Gly Ser Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 54]]> <![CDATA[<211> 5]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 54]]> Gly Tyr Tyr Ile His 1 5 <![CDATA[<210> 55]]> <![CDATA[<211> 17]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 55]]> Tyr Ile Ser Ser Tyr Asn Ala Ala Thr Ser Phe Asn Gln Lys Phe Lys 1 5 10 15 Gly <![CDATA[<210> 56]]> <![CDATA[<211> 10]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 56]]> Thr Glu Leu Arg Gly Pro Trp Phe Ala Tyr 1 5 10 <![CDATA[<210> 57]]> <![CDATA[<211> 10]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 57]]> Ser Ala Ser Ser Ser Val Ser Tyr Met Asn 1 5 10 <![CDATA[<210> 58]]> <![CDATA[<211> 7]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 58]]> Asp Thr Ser Lys Leu Ala Ser 1 5 <![CDATA[<210> 59]]> <![CDATA[<211> 9]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 59]]> Gln Gln Trp Ser Asn Asn Pro Leu Thr 1 5 <![CDATA[<210> 60]]> <![CDATA[<211> 17]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 60]]> Tyr Ile Ser Cys Tyr Asn Gly Ala Thr Ser Phe Asn Gln Lys Phe Lys 1 5 10 15 Gly <![CDATA[<210> 61]]> <![CDATA[<211> 119]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 61]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Tyr Ile His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 35 40 45 Gly Tyr Ile Ser Ser Tyr Asn Ala Ala Thr Ser Phe Asn Gln Lys Phe 50 55 60 Lys Gly Arg Val Thr Met Thr Arg Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Thr Glu Leu Arg Gly Pro Trp Phe Ala Tyr Trp Gly Gln Gly 100 105 110 Thr Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 62]]> <![CDATA[<211> 119]]> <![CDATA[<21]]>2> PRT]]> <br/><![CDATA[<213> 人工序列]]> <br/> <br/><![CDATA[<220>]]> <br/><![CDATA[<223> 合成]]> <br/> <br/><![CDATA[<400> 62]]> <br/> <br/><![CDATA[Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Tyr Ile His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Ser Ser Tyr Asn Ala Ala Thr Ser Phe Asn Gln Lys Phe 50 55 60 Lys Gly Arg Val Thr Phe Thr Val Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Thr Glu Leu Arg Gly Pro Trp Phe Ala Tyr Trp Gly Gln Gly 100 105 110 Thr Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 63]]> <![CDATA[<211> 119]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 63]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Tyr Ile His Trp Val Lys Gln Ala Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Ser Ser Tyr Asn Ala Ala Thr Ser Phe Asn Gln Lys Phe 50 55 60 Lys Gly Arg Val Thr Phe Thr Val Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Phe Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Thr Glu Leu Arg Gly Pro Trp Phe Ala Tyr Trp Gly Gln Gly 100 105 110 Thr Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 64]]> <![CDATA[<211> 119]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 64]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Ile Ser Cys Lys Ala Ser Gly Tyr Ser Phe Thr Gly Tyr 20 25 30 Tyr Ile His Trp Val Lys Gln Ala Pro Gly Gln Gly Leu Glu Trp Ile 35 40 45 Gly Tyr Ile Ser Ser Tyr Asn Ala Ala Thr Ser Phe Asn Gln Lys Phe 50 55 60 Lys Gly Arg Ala Thr Phe Thr Val Asp Thr Ser Thr Ser Thr Ala Tyr 65 70 75 80 Met Glu Phe Ser Ser Leu Arg Ser Glu Asp Ser Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Thr Glu Leu Arg Gly Pro Trp Phe Ala Tyr Trp Gly Gln Gly 100 105 110 Thr Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 65]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 65]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 20 25 30 Asn Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile Tyr 35 40 45 Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ser Arg Phe Ser Gly Ser 50 55 60 Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 65 70 75 80 Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Ser Asn Asn Pro Leu Thr 85 90 95 Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 66]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 66]]> Asp Thr Gln Met Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 20 25 30 Asn Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Arg Leu Ile Tyr 35 40 45 Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ser Arg Phe Ser Gly Ser 50 55 60 Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Leu Gln Pro Glu 65 70 75 80 Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Ser Asn Asn Pro Leu Thr 85 90 95 Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 67]]> <![CDATA[<211> 106]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 67]]> Asp Thr Gln Leu Thr Gln Ser Pro Ser Ser Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Met Thr Cys Ser Ala Ser Ser Ser Val Ser Tyr Met 20 25 30 Asn Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Arg Leu Ile Tyr 35 40 45 Asp Thr Ser Lys Leu Ala Ser Gly Val Pro Ser Arg Phe Ser Gly Ser 50 55 60 Gly Ser Gly Thr Asp Tyr Thr Leu Thr Ile Ser Ser Met Gln Pro Glu 65 70 75 80 Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Trp Ser Asn Asn Pro Leu Thr 85 90 95 Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 68]]> <![CDATA[<211> 5]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 68]]> Thr Tyr Thr Met His 1 5 <![CDATA[<210> 69]]> <![CDATA[<211> 17]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 69]]> Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe Lys 1 5 10 15 Asp <![CDATA[<210> 70]]> <![CDATA[<211> 9]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 70]]> Leu Arg Ser Arg Gly Tyr Phe Asp Tyr 1 5 <![CDATA[<210> 71]]> <![CDATA[<211> 11]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 71]]> Lys Ala Ser Gln Asn Val Gly Thr Ala Val Val 1 5 10 <![CDATA[<210> 72]]> <![CDATA[<211> 7]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 72]]> Ser Ala Ser Asn Arg Tyr Thr 1 5 <![CDATA[<210> 73]]> <![CDATA[<211> 9]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 73]]> Gln Gln Tyr Ser Ser Tyr Pro Tyr Thr 1 5 <![CDATA[<210> 74]]> <![CDATA[<211> 11]]>8 <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 74]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Met 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Arg Val Thr Met Thr Arg Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ser Arg Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 75]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 75]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Lys Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Arg Gln Ala Pro Gly Gln Gly Leu Glu Trp Leu 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Arg Val Thr Met Thr Ala Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Arg Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 76]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 76]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Ala Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Val Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Ala Pro Gly Gln Gly Leu Glu Trp Leu 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Arg Val Thr Met Thr Ala Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Ser Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Leu Val Thr Val Ser Ser 115 <![CDATA[<210> 77]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 77]]> Gln Val Gln Leu Val Gln Ser Gly Ala Glu Val Ala Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Ala Pro Gly Gln Gly Leu Glu Trp Leu 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Arg Val Thr Leu Thr Ala Asp Thr Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Ser Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Leu Leu Thr Val Ser Ser 115 <![CDATA[<210> 78]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 78]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Val Ala Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Leu 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Arg Val Thr Leu Thr Ala Asp Lys Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Ser Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Leu Leu Thr Val Ser Ser 115 <![CDATA[<210> 79]]> <![CDATA[<211> 118]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 79]]> Gln Val Gln Leu Gln Gln Ser Gly Ala Glu Val Ala Lys Pro Gly Ala 1 5 10 15 Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe Thr Thr Tyr 20 25 30 Thr Met His Trp Val Lys Gln Arg Pro Gly Gln Gly Leu Glu Trp Leu 35 40 45 Gly Tyr Ile Asn Pro Ser Ser Gly Tyr Thr Asn Tyr Asn Gln Lys Phe 50 55 60 Lys Asp Arg Ala Thr Leu Thr Ala Gly Lys Ser Thr Ser Thr Val Tyr 65 70 75 80 Met Glu Leu Ser Ser Leu Arg Ser Glu Asp Thr Ala Val Tyr Tyr Cys 85 90 95 Ala Ser Leu Arg Ser Arg Gly Tyr Phe Asp Tyr Trp Gly Gln Gly Thr 100 105 110 Leu Leu Thr Val Ser Ser 115 <![CDATA[<210> 80]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 80]]> Asp Ile Gln Leu Thr Gln Ser Pro Ser Phe Leu Ser Ala Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Lys Ala Pro Lys Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Tyr Tyr Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 81]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 81]]> Asp Ile Gln Leu Thr Gln Ser Pro Ser Phe Leu Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Lys Ser Pro Lys Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Phe Tyr Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 82]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 82]]> Asp Ile Gln Met Thr Gln Ser Pro Ser Phe Leu Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Lys Ser Pro Lys Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Val Pro Ser Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Met Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Phe Phe Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 83]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> ]]>人工序列 <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 83]]> Asp Ile Val Met Thr Gln Ser Pro Ser Phe Leu Ser Thr Ser Val Gly 1 5 10 15 Asp Arg Val Thr Ile Thr Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Lys Ser Pro Lys Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Val Pro Asp Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Met Gln Pro 65 70 75 80 Glu Asp Phe Ala Thr Phe Phe Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 84]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 84]]> Glu Ile Val Met Thr Gln Ser Pro Ala Thr Leu Ser Val Ser Pro Gly 1 5 10 15 Glu Arg Ala Thr Leu Ser Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Gln Ala Pro Arg Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Ile Pro Ala Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Ser 65 70 75 80 Glu Asp Phe Ala Val Tyr Tyr Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 85]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 85]]> Glu Ile Val Met Thr Gln Ser Pro Ala Thr Leu Ser Thr Ser Pro Gly 1 5 10 15 Glu Arg Ala Thr Leu Ser Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Arg Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Ile Pro Asp Arg Phe Ser Gly 50 55 60 Ser Gly Ser Gly Thr Glu Phe Thr Leu Thr Ile Ser Ser Leu Gln Ser 65 70 75 80 Glu Asp Phe Ala Val Phe Phe Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gln Gly Thr Lys Leu Glu Ile Lys 100 105 <![CDATA[<210> 86]]> <![CDATA[<211> 107]]> <![CDATA[<212> PRT]]> <![CDATA[<213> 人工序列]]> <![CDATA[<220>]]> <![CDATA[<223> 合成]]> <![CDATA[<400> 86]]> Glu Ile Val Met Thr Gln Ser Pro Ala Thr Leu Ser Thr Ser Pro Gly 1 5 10 15 Glu Arg Val Thr Ile Ser Cys Lys Ala Ser Gln Asn Val Gly Thr Ala 20 25 30 Val Val Trp Tyr Gln Gln Lys Pro Gly Gln Ser Pro Arg Leu Leu Ile 35 40 45 Tyr Ser Ala Ser Asn Arg Tyr Thr Gly Ile Pro Asp Arg Phe Thr Gly 50 55 60 Ser Gly Ser Gly Thr Asp Phe Thr Leu Thr Ile Ser Ser Met Gln Ser 65 70 75 80 Glu Asp Phe Ala Val Phe Phe Cys Gln Gln Tyr Ser Ser Tyr Pro Tyr 85 90 95 Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 100 105
Claims (29)
- 一種對人類G蛋白偶聯受體C家族5組成員D (GPRC5D)蛋白具有結合特異性之抗體或其抗原結合片段,其中該抗體或其片段包含重鏈可變區(VH)及輕鏈可變區(VL),該重鏈可變區(VH)包含重鏈互補決定區CDRH1、CDRH2及CDRH3,該輕鏈可變區(VL)包含互補決定區CDRL1、CDRL2及CDRL3,其中該CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含: (a) SEQ ID NO:42-47之胺基酸序列; (b) SEQ ID NO:29-34之胺基酸序列; (c) SEQ ID NO:54-59之胺基酸序列;或 (d) SEQ ID NO:68-73之胺基酸序列。
- 如請求項1之抗體或其抗原結合片段,其中CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:42-47之胺基酸序列。
- 如請求項2之抗體或其抗原結合片段,其中VH包含選自由SEQ ID NO:9及48-50組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:10及51-53組成之群的胺基酸序列。
- 如請求項2之抗體或其抗原結合片段,其中VH包含SEQ ID NO:48之胺基酸序列,且VL包含SEQ ID NO:51之胺基酸序列。
- 如請求項1之抗體或其抗原結合片段,其中CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:29-34之胺基酸序列。
- 如請求項5之抗體或其抗原結合片段,其中VH包含選自由SEQ ID NO:7及35-37組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:8及38-41組成之群的胺基酸序列。
- 如請求項5之抗體或其抗原結合片段,其中VH包含SEQ ID NO:35之胺基酸序列,VL包含SEQ ID NO:38之胺基酸序列。
- 如請求項1之抗體或其抗原結合片段,其中CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:54-59之胺基酸序列。
- 如請求項8之抗體或其抗原結合片段,其中VH包含選自由SEQ ID NO:61-64組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:16及65-67組成之群的胺基酸序列。
- 如請求項8之抗體或其抗原結合片段,其中VH包含SEQ ID NO:61之胺基酸序列,且VL包含SEQ ID NO:65之胺基酸序列。
- 如請求項8之抗體或其抗原結合片段,其中VH包含SEQ ID NO:63之胺基酸序列,且VL包含SEQ ID NO:65之胺基酸序列。
- 如請求項1之抗體或其抗原結合片段,其中CDRH1、CDRH2、CDRH3、CDRL1、CDRL2及CDRL3分別包含SEQ ID NO:68-73之胺基酸序列。
- 如請求項12之抗體或其抗原結合片段,其中VH包含選自由SEQ ID NO:1及74-79組成之群的胺基酸序列,且VL包含選自由SEQ ID NO:2及80-86組成之群的胺基酸序列。
- 如請求項12之抗體或其抗原結合片段,其中VH包含SEQ ID NO:76之胺基酸序列,且VL包含SEQ ID NO:82之胺基酸序列。
- 如請求項12之抗體或其抗原結合片段,其中VH包含SEQ ID NO:77之胺基酸序列,且VL包含SEQ ID NO:82之胺基酸序列。
- 如請求項1至15中任一項之抗體或其片段,其係人源化的。
- 如請求項1至16中任一項之抗體或其片段,其具有ADCC能力。
- 如請求項1至16中任一項之抗體或其片段,其進一步包含與該抗體或其片段結合之細胞毒性藥物。
- 一種雙特異性抗體,其包含請求項1至16中任一項之抗原結合片段,及對第二目標蛋白具有特異性之第二抗原結合片段。
- 如請求項19之雙特異性抗體,其中該第二目標蛋白選自由CD3、CD16、CD19、CD28、CD64及4-1BB組成之群。
- 如請求項19之雙特異性抗體,其中該第二目標蛋白係CD3。
- 一種治療有需要患者之癌症的方法,其包含向該患者投與如請求項1至21中任一項之抗體或其片段。
- 一種治療有需要患者之癌症的方法,其包含(a)用如請求項1至21中任一項之抗體或其片段活體外處理T細胞、自然殺手(NK)細胞或巨噬細胞,及(b)將該經處理之細胞投與至該患者。
- 如請求項23之方法,其進一步包含在步驟(a)之前,自個體分離該T細胞、該NK細胞或該巨噬細胞。
- 如請求項24之方法,其中該T細胞、該NK細胞或該巨噬細胞係自該患者中分離。
- 如請求項23之方法,其中該T細胞係腫瘤浸潤性T淋巴細胞、CD4+T細胞、CD8+T細胞或其組合。
- 如請求項22至26中任一項之方法,其中該癌症係血液癌症。
- 如請求項27之方法,其中該血液癌症係表現GPRC5D之B細胞癌。
- 如請求項28之方法,其中該表現GPRC5D之B細胞癌係多發性骨髓瘤。
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